21564688

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{463}}^1$

素因数の和:583

約数の個数: 40

約数和(自身を含む): 43497216

約数和(自身を除く): 21932528

約数列:

[1, 2, 4, 8, 16, 41, 71, 82, 142, 164, 284, 328, 463, 568, 656, 926, 1136, 1852, 2911, 3704, 5822, 7408, 11644, 18983, 23288, 32873, 37966, 46576, 65746, 75932, 131492, 151864, 262984, 303728, 525968, 1347793, 2695586, 5391172, 10782344, 21564688]

約数ペア:

[(1, 21564688), (2, 10782344), (4, 5391172), (8, 2695586), (16, 1347793), (41, 525968), (71, 303728), (82, 262984), (142, 151864), (164, 131492), (284, 75932), (328, 65746), (463, 46576), (568, 37966), (656, 32873), (926, 23288), (1136, 18983), (1852, 11644), (2911, 7408), (3704, 5822)]