19712917515

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{42393371}}^1$

素因数の和:42393410

約数の個数: 16

約数和(自身を含む): 32558109696

約数和(自身を除く): 12845192181

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 42393371, 127180113, 211966855, 635900565, 1314194501, 3942583503, 6570972505, 19712917515]

約数ペア:

[(1, 19712917515), (3, 6570972505), (5, 3942583503), (15, 1314194501), (31, 635900565), (93, 211966855), (155, 127180113), (465, 42393371)]