21624220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{26371}}^1$

素因数の和:26421

約数の個数: 24

約数和(自身を含む): 46520208

約数和(自身を除く): 24895988

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 26371, 52742, 105484, 131855, 263710, 527420, 1081211, 2162422, 4324844, 5406055, 10812110, 21624220]

約数ペア:

[(1, 21624220), (2, 10812110), (4, 5406055), (5, 4324844), (10, 2162422), (20, 1081211), (41, 527420), (82, 263710), (164, 131855), (205, 105484), (410, 52742), (820, 26371)]