21400425

素因数分解:

$3^2\times 5^2\times {\mathrm{227}}^1\times {\mathrm{419}}^1$

素因数の和:662

約数の個数: 36

約数和(自身を含む): 38591280

約数和(自身を除く): 17190855

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 227, 419, 681, 1135, 1257, 2043, 2095, 3405, 3771, 5675, 6285, 10215, 10475, 17025, 18855, 31425, 51075, 94275, 95113, 285339, 475565, 856017, 1426695, 2377825, 4280085, 7133475, 21400425]

約数ペア:

[(1, 21400425), (3, 7133475), (5, 4280085), (9, 2377825), (15, 1426695), (25, 856017), (45, 475565), (75, 285339), (225, 95113), (227, 94275), (419, 51075), (681, 31425), (1135, 18855), (1257, 17025), (2043, 10475), (2095, 10215), (3405, 6285), (3771, 5675)]