21036697948

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{20305693}}^1$

素因数の和:20305741

約数の個数: 24

約数和(自身を含む): 43210516832

約数和(自身を除く): 22173818884

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 20305693, 40611386, 81222772, 142139851, 284279702, 568559404, 751310641, 1502621282, 3005242564, 5259174487, 10518348974, 21036697948]

約数ペア:

[(1, 21036697948), (2, 10518348974), (4, 5259174487), (7, 3005242564), (14, 1502621282), (28, 751310641), (37, 568559404), (74, 284279702), (148, 142139851), (259, 81222772), (518, 40611386), (1036, 20305693)]