21237333

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:269

約数の個数: 32

約数和(自身を含む): 31664640

約数和(自身を除く): 10427307

約数列:

[1, 3, 13, 39, 61, 79, 113, 183, 237, 339, 793, 1027, 1469, 2379, 3081, 4407, 4819, 6893, 8927, 14457, 20679, 26781, 62647, 89609, 116051, 187941, 268827, 348153, 544547, 1633641, 7079111, 21237333]

約数ペア:

[(1, 21237333), (3, 7079111), (13, 1633641), (39, 544547), (61, 348153), (79, 268827), (113, 187941), (183, 116051), (237, 89609), (339, 62647), (793, 26781), (1027, 20679), (1469, 14457), (2379, 8927), (3081, 6893), (4407, 4819)]