21155310

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{419}}^1$

素因数の和:463

約数の個数: 128

約数和(自身を含む): 65318400

約数和(自身を除く): 44163090

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 17, 18, 22, 27, 30, 33, 34, 45, 51, 54, 55, 66, 85, 90, 99, 102, 110, 135, 153, 165, 170, 187, 198, 255, 270, 297, 306, 330, 374, 419, 459, 495, 510, 561, 594, 765, 838, 918, 935, 990, 1122, 1257, 1485, 1530, 1683, 1870, 2095, 2295, 2514, 2805, 2970, 3366, 3771, 4190, 4590, 4609, 5049, 5610, 6285, 7123, 7542, 8415, 9218, 10098, 11313, 12570, 13827, 14246, 16830, 18855, 21369, 22626, 23045, 25245, 27654, 35615, 37710, 41481, 42738, 46090, 50490, 56565, 64107, 69135, 71230, 78353, 82962, 106845, 113130, 124443, 128214, 138270, 156706, 192321, 207405, 213690, 235059, 248886, 320535, 384642, 391765, 414810, 470118, 622215, 641070, 705177, 783530, 961605, 1175295, 1244430, 1410354, 1923210, 2115531, 2350590, 3525885, 4231062, 7051770, 10577655, 21155310]

約数ペア:

[(1, 21155310), (2, 10577655), (3, 7051770), (5, 4231062), (6, 3525885), (9, 2350590), (10, 2115531), (11, 1923210), (15, 1410354), (17, 1244430), (18, 1175295), (22, 961605), (27, 783530), (30, 705177), (33, 641070), (34, 622215), (45, 470118), (51, 414810), (54, 391765), (55, 384642), (66, 320535), (85, 248886), (90, 235059), (99, 213690), (102, 207405), (110, 192321), (135, 156706), (153, 138270), (165, 128214), (170, 124443), (187, 113130), (198, 106845), (255, 82962), (270, 78353), (297, 71230), (306, 69135), (330, 64107), (374, 56565), (419, 50490), (459, 46090), (495, 42738), (510, 41481), (561, 37710), (594, 35615), (765, 27654), (838, 25245), (918, 23045), (935, 22626), (990, 21369), (1122, 18855), (1257, 16830), (1485, 14246), (1530, 13827), (1683, 12570), (1870, 11313), (2095, 10098), (2295, 9218), (2514, 8415), (2805, 7542), (2970, 7123), (3366, 6285), (3771, 5610), (4190, 5049), (4590, 4609)]