20856888

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{22283}}^1$

素因数の和:22308

約数の個数: 48

約数和(自身を含む): 60835320

約数和(自身を除く): 39978432

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 22283, 44566, 66849, 89132, 133698, 178264, 200547, 267396, 289679, 401094, 534792, 579358, 802188, 869037, 1158716, 1604376, 1738074, 2317432, 2607111, 3476148, 5214222, 6952296, 10428444, 20856888]

約数ペア:

[(1, 20856888), (2, 10428444), (3, 6952296), (4, 5214222), (6, 3476148), (8, 2607111), (9, 2317432), (12, 1738074), (13, 1604376), (18, 1158716), (24, 869037), (26, 802188), (36, 579358), (39, 534792), (52, 401094), (72, 289679), (78, 267396), (104, 200547), (117, 178264), (156, 133698), (234, 89132), (312, 66849), (468, 44566), (936, 22283)]