20123187

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1\times {\mathrm{191}}^1$

素因数の和:403

約数の個数: 32

約数和(自身を含む): 32071680

約数和(自身を除く): 11948493

約数列:

[1, 3, 7, 21, 29, 87, 173, 191, 203, 519, 573, 609, 1211, 1337, 3633, 4011, 5017, 5539, 15051, 16617, 33043, 35119, 38773, 99129, 105357, 116319, 231301, 693903, 958247, 2874741, 6707729, 20123187]

約数ペア:

[(1, 20123187), (3, 6707729), (7, 2874741), (21, 958247), (29, 693903), (87, 231301), (173, 116319), (191, 105357), (203, 99129), (519, 38773), (573, 35119), (609, 33043), (1211, 16617), (1337, 15051), (3633, 5539), (4011, 5017)]