21865124

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{1663}}^1$

素因数の和:1859

約数の個数: 24

約数和(自身を含む): 40535040

約数和(自身を除く): 18669916

約数列:

[1, 2, 4, 19, 38, 76, 173, 346, 692, 1663, 3287, 3326, 6574, 6652, 13148, 31597, 63194, 126388, 287699, 575398, 1150796, 5466281, 10932562, 21865124]

約数ペア:

[(1, 21865124), (2, 10932562), (4, 5466281), (19, 1150796), (38, 575398), (76, 287699), (173, 126388), (346, 63194), (692, 31597), (1663, 13148), (3287, 6652), (3326, 6574)]