20906964

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{14891}}^1$

素因数の和:14917

約数の個数: 48

約数和(自身を含む): 58376640

約数和(自身を除く): 37469676

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 108, 117, 156, 234, 351, 468, 702, 1404, 14891, 29782, 44673, 59564, 89346, 134019, 178692, 193583, 268038, 387166, 402057, 536076, 580749, 774332, 804114, 1161498, 1608228, 1742247, 2322996, 3484494, 5226741, 6968988, 10453482, 20906964]

約数ペア:

[(1, 20906964), (2, 10453482), (3, 6968988), (4, 5226741), (6, 3484494), (9, 2322996), (12, 1742247), (13, 1608228), (18, 1161498), (26, 804114), (27, 774332), (36, 580749), (39, 536076), (52, 402057), (54, 387166), (78, 268038), (108, 193583), (117, 178692), (156, 134019), (234, 89346), (351, 59564), (468, 44673), (702, 29782), (1404, 14891)]