72647211

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{947}}^1$

素因数の和:1251

約数の個数: 32

約数和(自身を含む): 119766528

約数和(自身を除く): 47119317

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 281, 843, 947, 1967, 2841, 3653, 5901, 6629, 10959, 12311, 19887, 25571, 36933, 76713, 86177, 258531, 266107, 798321, 1862749, 3459391, 5588247, 10378173, 24215737, 72647211]

約数ペア:

[(1, 72647211), (3, 24215737), (7, 10378173), (13, 5588247), (21, 3459391), (39, 1862749), (91, 798321), (273, 266107), (281, 258531), (843, 86177), (947, 76713), (1967, 36933), (2841, 25571), (3653, 19887), (5901, 12311), (6629, 10959)]