21034455

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{401}}^1$

素因数の和:691

約数の個数: 32

約数和(自身を含む): 36469440

約数和(自身を除く): 15434985

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 269, 401, 807, 1203, 1345, 2005, 3497, 4035, 5213, 6015, 10491, 15639, 17485, 26065, 52455, 78195, 107869, 323607, 539345, 1402297, 1618035, 4206891, 7011485, 21034455]

約数ペア:

[(1, 21034455), (3, 7011485), (5, 4206891), (13, 1618035), (15, 1402297), (39, 539345), (65, 323607), (195, 107869), (269, 78195), (401, 52455), (807, 26065), (1203, 17485), (1345, 15639), (2005, 10491), (3497, 6015), (4035, 5213)]