21876925

素因数分解:

$5^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{839}}^1$

素因数の和:1005

約数の個数: 24

約数和(自身を含む): 31248000

約数和(自身を除く): 9371075

約数列:

[1, 5, 7, 25, 35, 149, 175, 745, 839, 1043, 3725, 4195, 5215, 5873, 20975, 26075, 29365, 125011, 146825, 625055, 875077, 3125275, 4375385, 21876925]

約数ペア:

[(1, 21876925), (5, 4375385), (7, 3125275), (25, 875077), (35, 625055), (149, 146825), (175, 125011), (745, 29365), (839, 26075), (1043, 20975), (3725, 5873), (4195, 5215)]