21520384

素因数分解:

$2^{13}\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:134

約数の個数: 56

約数和(自身を含む): 44823888

約数和(自身を除く): 23303504

約数列:

[1, 2, 4, 8, 16, 32, 37, 64, 71, 74, 128, 142, 148, 256, 284, 296, 512, 568, 592, 1024, 1136, 1184, 2048, 2272, 2368, 2627, 4096, 4544, 4736, 5254, 8192, 9088, 9472, 10508, 18176, 18944, 21016, 36352, 37888, 42032, 72704, 75776, 84064, 145408, 151552, 168128, 290816, 303104, 336256, 581632, 672512, 1345024, 2690048, 5380096, 10760192, 21520384]

約数ペア:

[(1, 21520384), (2, 10760192), (4, 5380096), (8, 2690048), (16, 1345024), (32, 672512), (37, 581632), (64, 336256), (71, 303104), (74, 290816), (128, 168128), (142, 151552), (148, 145408), (256, 84064), (284, 75776), (296, 72704), (512, 42032), (568, 37888), (592, 36352), (1024, 21016), (1136, 18944), (1184, 18176), (2048, 10508), (2272, 9472), (2368, 9088), (2627, 8192), (4096, 5254), (4544, 4736)]