20957976

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{22391}}^1$

素因数の和:22416

約数の個数: 48

約数和(自身を含む): 61130160

約数和(自身を除く): 40172184

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, 22391, 44782, 67173, 89564, 134346, 179128, 201519, 268692, 291083, 403038, 537384, 582166, 806076, 873249, 1164332, 1612152, 1746498, 2328664, 2619747, 3492996, 5239494, 6985992, 10478988, 20957976]

約数ペア:

[(1, 20957976), (2, 10478988), (3, 6985992), (4, 5239494), (6, 3492996), (8, 2619747), (9, 2328664), (12, 1746498), (13, 1612152), (18, 1164332), (24, 873249), (26, 806076), (36, 582166), (39, 537384), (52, 403038), (72, 291083), (78, 268692), (104, 201519), (117, 179128), (156, 134346), (234, 89564), (312, 67173), (468, 44782), (936, 22391)]