21715290

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1$

素因数の和:138

約数の個数: 160

約数和(自身を含む): 65862720

約数和(自身を除く): 44147430

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 19, 27, 30, 34, 38, 45, 51, 54, 57, 81, 83, 85, 90, 95, 102, 114, 135, 153, 162, 166, 170, 171, 190, 249, 255, 270, 285, 306, 323, 342, 405, 415, 459, 498, 510, 513, 570, 646, 747, 765, 810, 830, 855, 918, 969, 1026, 1245, 1377, 1411, 1494, 1530, 1539, 1577, 1615, 1710, 1938, 2241, 2295, 2490, 2565, 2754, 2822, 2907, 3078, 3154, 3230, 3735, 4233, 4482, 4590, 4731, 4845, 5130, 5814, 6723, 6885, 7055, 7470, 7695, 7885, 8466, 8721, 9462, 9690, 11205, 12699, 13446, 13770, 14110, 14193, 14535, 15390, 15770, 17442, 21165, 22410, 23655, 25398, 26163, 26809, 28386, 29070, 33615, 38097, 42330, 42579, 43605, 47310, 52326, 53618, 63495, 67230, 70965, 76194, 80427, 85158, 87210, 114291, 126990, 127737, 130815, 134045, 141930, 160854, 190485, 212895, 228582, 241281, 255474, 261630, 268090, 380970, 402135, 425790, 482562, 571455, 638685, 723843, 804270, 1142910, 1206405, 1277370, 1447686, 2171529, 2412810, 3619215, 4343058, 7238430, 10857645, 21715290]

約数ペア:

[(1, 21715290), (2, 10857645), (3, 7238430), (5, 4343058), (6, 3619215), (9, 2412810), (10, 2171529), (15, 1447686), (17, 1277370), (18, 1206405), (19, 1142910), (27, 804270), (30, 723843), (34, 638685), (38, 571455), (45, 482562), (51, 425790), (54, 402135), (57, 380970), (81, 268090), (83, 261630), (85, 255474), (90, 241281), (95, 228582), (102, 212895), (114, 190485), (135, 160854), (153, 141930), (162, 134045), (166, 130815), (170, 127737), (171, 126990), (190, 114291), (249, 87210), (255, 85158), (270, 80427), (285, 76194), (306, 70965), (323, 67230), (342, 63495), (405, 53618), (415, 52326), (459, 47310), (498, 43605), (510, 42579), (513, 42330), (570, 38097), (646, 33615), (747, 29070), (765, 28386), (810, 26809), (830, 26163), (855, 25398), (918, 23655), (969, 22410), (1026, 21165), (1245, 17442), (1377, 15770), (1411, 15390), (1494, 14535), (1530, 14193), (1539, 14110), (1577, 13770), (1615, 13446), (1710, 12699), (1938, 11205), (2241, 9690), (2295, 9462), (2490, 8721), (2565, 8466), (2754, 7885), (2822, 7695), (2907, 7470), (3078, 7055), (3154, 6885), (3230, 6723), (3735, 5814), (4233, 5130), (4482, 4845), (4590, 4731)]