21154304

素因数分解:

$2^9\times {\mathrm{79}}^1\times {\mathrm{523}}^1$

素因数の和:620

約数の個数: 40

約数和(自身を含む): 42884160

約数和(自身を除く): 21729856

約数列:

[1, 2, 4, 8, 16, 32, 64, 79, 128, 158, 256, 316, 512, 523, 632, 1046, 1264, 2092, 2528, 4184, 5056, 8368, 10112, 16736, 20224, 33472, 40448, 41317, 66944, 82634, 133888, 165268, 267776, 330536, 661072, 1322144, 2644288, 5288576, 10577152, 21154304]

約数ペア:

[(1, 21154304), (2, 10577152), (4, 5288576), (8, 2644288), (16, 1322144), (32, 661072), (64, 330536), (79, 267776), (128, 165268), (158, 133888), (256, 82634), (316, 66944), (512, 41317), (523, 40448), (632, 33472), (1046, 20224), (1264, 16736), (2092, 10112), (2528, 8368), (4184, 5056)]