19281665

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1$

素因数の和:293

約数の個数: 32

約数和(自身を含む): 26399520

約数和(自身を除く): 7117855

約数列:

[1, 5, 13, 29, 53, 65, 145, 193, 265, 377, 689, 965, 1537, 1885, 2509, 3445, 5597, 7685, 10229, 12545, 19981, 27985, 51145, 72761, 99905, 132977, 296641, 363805, 664885, 1483205, 3856333, 19281665]

約数ペア:

[(1, 19281665), (5, 3856333), (13, 1483205), (29, 664885), (53, 363805), (65, 296641), (145, 132977), (193, 99905), (265, 72761), (377, 51145), (689, 27985), (965, 19981), (1537, 12545), (1885, 10229), (2509, 7685), (3445, 5597)]