21170660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:181

約数の個数: 96

約数和(自身を含む): 53829888

約数和(自身を除く): 32659228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 61, 67, 70, 74, 122, 134, 140, 148, 185, 244, 259, 268, 305, 335, 370, 427, 469, 518, 610, 670, 740, 854, 938, 1036, 1220, 1295, 1340, 1708, 1876, 2135, 2257, 2345, 2479, 2590, 4087, 4270, 4514, 4690, 4958, 5180, 8174, 8540, 9028, 9380, 9916, 11285, 12395, 15799, 16348, 17353, 20435, 22570, 24790, 28609, 31598, 34706, 40870, 45140, 49580, 57218, 63196, 69412, 78995, 81740, 86765, 114436, 143045, 151219, 157990, 173530, 286090, 302438, 315980, 347060, 572180, 604876, 756095, 1058533, 1512190, 2117066, 3024380, 4234132, 5292665, 10585330, 21170660]

約数ペア:

[(1, 21170660), (2, 10585330), (4, 5292665), (5, 4234132), (7, 3024380), (10, 2117066), (14, 1512190), (20, 1058533), (28, 756095), (35, 604876), (37, 572180), (61, 347060), (67, 315980), (70, 302438), (74, 286090), (122, 173530), (134, 157990), (140, 151219), (148, 143045), (185, 114436), (244, 86765), (259, 81740), (268, 78995), (305, 69412), (335, 63196), (370, 57218), (427, 49580), (469, 45140), (518, 40870), (610, 34706), (670, 31598), (740, 28609), (854, 24790), (938, 22570), (1036, 20435), (1220, 17353), (1295, 16348), (1340, 15799), (1708, 12395), (1876, 11285), (2135, 9916), (2257, 9380), (2345, 9028), (2479, 8540), (2590, 8174), (4087, 5180), (4270, 4958), (4514, 4690)]