20911515

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{44971}}^1$

素因数の和:45010

約数の個数: 16

約数和(自身を含む): 34538496

約数和(自身を除く): 13626981

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 44971, 134913, 224855, 674565, 1394101, 4182303, 6970505, 20911515]

約数ペア:

[(1, 20911515), (3, 6970505), (5, 4182303), (15, 1394101), (31, 674565), (93, 224855), (155, 134913), (465, 44971)]