18721912

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{5189}}^1$

素因数の和:5247

約数の個数: 32

約数和(自身を含む): 39236400

約数和(自身を除く): 20514488

約数列:

[1, 2, 4, 8, 11, 22, 41, 44, 82, 88, 164, 328, 451, 902, 1804, 3608, 5189, 10378, 20756, 41512, 57079, 114158, 212749, 228316, 425498, 456632, 850996, 1701992, 2340239, 4680478, 9360956, 18721912]

約数ペア:

[(1, 18721912), (2, 9360956), (4, 4680478), (8, 2340239), (11, 1701992), (22, 850996), (41, 456632), (44, 425498), (82, 228316), (88, 212749), (164, 114158), (328, 57079), (451, 41512), (902, 20756), (1804, 10378), (3608, 5189)]