17891913

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1$

素因数の和:333

約数の個数: 32

約数和(自身を含む): 26966016

約数和(自身を除く): 9074103

約数列:

[1, 3, 13, 39, 43, 47, 129, 141, 227, 559, 611, 681, 1677, 1833, 2021, 2951, 6063, 8853, 9761, 10669, 26273, 29283, 32007, 78819, 126893, 138697, 380679, 416091, 458767, 1376301, 5963971, 17891913]

約数ペア:

[(1, 17891913), (3, 5963971), (13, 1376301), (39, 458767), (43, 416091), (47, 380679), (129, 138697), (141, 126893), (227, 78819), (559, 32007), (611, 29283), (681, 26273), (1677, 10669), (1833, 9761), (2021, 8853), (2951, 6063)]