21769280

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5233}}^1$

素因数の和:5263

約数の個数: 56

約数和(自身を含む): 55836312

約数和(自身を除く): 34067032

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 5233, 10466, 20932, 26165, 41864, 52330, 68029, 83728, 104660, 136058, 167456, 209320, 272116, 334912, 340145, 418640, 544232, 680290, 837280, 1088464, 1360580, 1674560, 2176928, 2721160, 4353856, 5442320, 10884640, 21769280]

約数ペア:

[(1, 21769280), (2, 10884640), (4, 5442320), (5, 4353856), (8, 2721160), (10, 2176928), (13, 1674560), (16, 1360580), (20, 1088464), (26, 837280), (32, 680290), (40, 544232), (52, 418640), (64, 340145), (65, 334912), (80, 272116), (104, 209320), (130, 167456), (160, 136058), (208, 104660), (260, 83728), (320, 68029), (416, 52330), (520, 41864), (832, 26165), (1040, 20932), (2080, 10466), (4160, 5233)]