20921058

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^2\times {\mathrm{283}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 47950560

約数和(自身を除く): 27029502

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 111, 222, 283, 333, 566, 666, 849, 999, 1369, 1698, 1998, 2547, 2738, 4107, 5094, 7641, 8214, 10471, 12321, 15282, 20942, 24642, 31413, 36963, 62826, 73926, 94239, 188478, 282717, 387427, 565434, 774854, 1162281, 2324562, 3486843, 6973686, 10460529, 20921058]

約数ペア:

[(1, 20921058), (2, 10460529), (3, 6973686), (6, 3486843), (9, 2324562), (18, 1162281), (27, 774854), (37, 565434), (54, 387427), (74, 282717), (111, 188478), (222, 94239), (283, 73926), (333, 62826), (566, 36963), (666, 31413), (849, 24642), (999, 20942), (1369, 15282), (1698, 12321), (1998, 10471), (2547, 8214), (2738, 7641), (4107, 5094)]