17908735

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{853}}^1$

素因数の和:907

約数の個数: 32

約数和(自身を含む): 25824960

約数和(自身を除く): 7916225

約数列:

[1, 5, 13, 17, 19, 65, 85, 95, 221, 247, 323, 853, 1105, 1235, 1615, 4199, 4265, 11089, 14501, 16207, 20995, 55445, 72505, 81035, 188513, 210691, 275519, 942565, 1053455, 1377595, 3581747, 17908735]

約数ペア:

[(1, 17908735), (5, 3581747), (13, 1377595), (17, 1053455), (19, 942565), (65, 275519), (85, 210691), (95, 188513), (221, 81035), (247, 72505), (323, 55445), (853, 20995), (1105, 16207), (1235, 14501), (1615, 11089), (4199, 4265)]