20907008

素因数分解:

$2^{10}\times {\mathrm{17}}^1\times {\mathrm{1201}}^1$

素因数の和:1238

約数の個数: 44

約数和(自身を含む): 44288892

約数和(自身を除く): 23381884

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 272, 512, 544, 1024, 1088, 1201, 2176, 2402, 4352, 4804, 8704, 9608, 17408, 19216, 20417, 38432, 40834, 76864, 81668, 153728, 163336, 307456, 326672, 614912, 653344, 1229824, 1306688, 2613376, 5226752, 10453504, 20907008]

約数ペア:

[(1, 20907008), (2, 10453504), (4, 5226752), (8, 2613376), (16, 1306688), (17, 1229824), (32, 653344), (34, 614912), (64, 326672), (68, 307456), (128, 163336), (136, 153728), (256, 81668), (272, 76864), (512, 40834), (544, 38432), (1024, 20417), (1088, 19216), (1201, 17408), (2176, 9608), (2402, 8704), (4352, 4804)]