21459130

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2$

素因数の和:116

約数の個数: 96

約数和(自身を含む): 51477120

約数和(自身を除く): 30017990

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 29, 31, 35, 55, 58, 62, 70, 77, 110, 145, 154, 155, 203, 217, 290, 310, 319, 341, 385, 406, 434, 638, 682, 770, 899, 961, 1015, 1085, 1595, 1705, 1798, 1922, 2030, 2170, 2233, 2387, 3190, 3410, 4466, 4495, 4774, 4805, 6293, 6727, 8990, 9610, 9889, 10571, 11165, 11935, 12586, 13454, 19778, 21142, 22330, 23870, 27869, 31465, 33635, 49445, 52855, 55738, 62930, 67270, 69223, 73997, 98890, 105710, 138446, 139345, 147994, 195083, 278690, 306559, 346115, 369985, 390166, 613118, 692230, 739970, 975415, 1532795, 1950830, 2145913, 3065590, 4291826, 10729565, 21459130]

約数ペア:

[(1, 21459130), (2, 10729565), (5, 4291826), (7, 3065590), (10, 2145913), (11, 1950830), (14, 1532795), (22, 975415), (29, 739970), (31, 692230), (35, 613118), (55, 390166), (58, 369985), (62, 346115), (70, 306559), (77, 278690), (110, 195083), (145, 147994), (154, 139345), (155, 138446), (203, 105710), (217, 98890), (290, 73997), (310, 69223), (319, 67270), (341, 62930), (385, 55738), (406, 52855), (434, 49445), (638, 33635), (682, 31465), (770, 27869), (899, 23870), (961, 22330), (1015, 21142), (1085, 19778), (1595, 13454), (1705, 12586), (1798, 11935), (1922, 11165), (2030, 10571), (2170, 9889), (2233, 9610), (2387, 8990), (3190, 6727), (3410, 6293), (4466, 4805), (4495, 4774)]