20398912

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{18749}}^1$

素因数の和:18778

約数の個数: 28

約数和(自身を含む): 42862500

約数和(自身を除く): 22463588

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 136, 272, 544, 1088, 18749, 37498, 74996, 149992, 299984, 318733, 599968, 637466, 1199936, 1274932, 2549864, 5099728, 10199456, 20398912]

約数ペア:

[(1, 20398912), (2, 10199456), (4, 5099728), (8, 2549864), (16, 1274932), (17, 1199936), (32, 637466), (34, 599968), (64, 318733), (68, 299984), (136, 149992), (272, 74996), (544, 37498), (1088, 18749)]