21127860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9029}}^1$

素因数の和:9057

約数の個数: 72

約数和(自身を含む): 69025320

約数和(自身を除く): 47897460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 9029, 18058, 27087, 36116, 45145, 54174, 81261, 90290, 108348, 117377, 135435, 162522, 180580, 234754, 270870, 325044, 352131, 406305, 469508, 541740, 586885, 704262, 812610, 1056393, 1173770, 1408524, 1625220, 1760655, 2112786, 2347540, 3521310, 4225572, 5281965, 7042620, 10563930, 21127860]

約数ペア:

[(1, 21127860), (2, 10563930), (3, 7042620), (4, 5281965), (5, 4225572), (6, 3521310), (9, 2347540), (10, 2112786), (12, 1760655), (13, 1625220), (15, 1408524), (18, 1173770), (20, 1056393), (26, 812610), (30, 704262), (36, 586885), (39, 541740), (45, 469508), (52, 406305), (60, 352131), (65, 325044), (78, 270870), (90, 234754), (117, 180580), (130, 162522), (156, 135435), (180, 117377), (195, 108348), (234, 90290), (260, 81261), (390, 54174), (468, 45145), (585, 36116), (780, 27087), (1170, 18058), (2340, 9029)]