12616821

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4261}}^1$

素因数の和:4321

約数の個数: 24

約数和(自身を含む): 21275904

約数和(自身を除く): 8659083

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 4261, 12783, 29827, 38349, 89481, 200267, 268443, 600801, 1401869, 1802403, 4205607, 12616821]

約数ペア:

[(1, 12616821), (3, 4205607), (7, 1802403), (9, 1401869), (21, 600801), (47, 268443), (63, 200267), (141, 89481), (329, 38349), (423, 29827), (987, 12783), (2961, 4261)]