21425220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{3217}}^1$

素因数の和:3269

約数の個数: 72

約数和(自身を含む): 66767064

約数和(自身を除く): 45341844

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 45, 60, 74, 90, 111, 148, 180, 185, 222, 333, 370, 444, 555, 666, 740, 1110, 1332, 1665, 2220, 3217, 3330, 6434, 6660, 9651, 12868, 16085, 19302, 28953, 32170, 38604, 48255, 57906, 64340, 96510, 115812, 119029, 144765, 193020, 238058, 289530, 357087, 476116, 579060, 595145, 714174, 1071261, 1190290, 1428348, 1785435, 2142522, 2380580, 3570870, 4285044, 5356305, 7141740, 10712610, 21425220]

約数ペア:

[(1, 21425220), (2, 10712610), (3, 7141740), (4, 5356305), (5, 4285044), (6, 3570870), (9, 2380580), (10, 2142522), (12, 1785435), (15, 1428348), (18, 1190290), (20, 1071261), (30, 714174), (36, 595145), (37, 579060), (45, 476116), (60, 357087), (74, 289530), (90, 238058), (111, 193020), (148, 144765), (180, 119029), (185, 115812), (222, 96510), (333, 64340), (370, 57906), (444, 48255), (555, 38604), (666, 32170), (740, 28953), (1110, 19302), (1332, 16085), (1665, 12868), (2220, 9651), (3217, 6660), (3330, 6434)]