21088010

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{277}}^1\times {\mathrm{331}}^1$

素因数の和:638

約数の個数: 32

約数和(自身を含む): 39871872

約数和(自身を除く): 18783862

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 277, 331, 554, 662, 1385, 1655, 2770, 3310, 6371, 7613, 12742, 15226, 31855, 38065, 63710, 76130, 91687, 183374, 458435, 916870, 2108801, 4217602, 10544005, 21088010]

約数ペア:

[(1, 21088010), (2, 10544005), (5, 4217602), (10, 2108801), (23, 916870), (46, 458435), (115, 183374), (230, 91687), (277, 76130), (331, 63710), (554, 38065), (662, 31855), (1385, 15226), (1655, 12742), (2770, 7613), (3310, 6371)]