21823090

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{397}}^1$

素因数の和:666

約数の個数: 32

約数和(自身を含む): 41264640

約数和(自身を除く): 19441550

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 239, 397, 478, 794, 1195, 1985, 2390, 3970, 5497, 9131, 10994, 18262, 27485, 45655, 54970, 91310, 94883, 189766, 474415, 948830, 2182309, 4364618, 10911545, 21823090]

約数ペア:

[(1, 21823090), (2, 10911545), (5, 4364618), (10, 2182309), (23, 948830), (46, 474415), (115, 189766), (230, 94883), (239, 91310), (397, 54970), (478, 45655), (794, 27485), (1195, 18262), (1985, 10994), (2390, 9131), (3970, 5497)]