18721704

素因数分解:

$2^3\times 3^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{727}}^1$

素因数の和:802

約数の個数: 64

約数和(自身を含む): 49795200

約数和(自身を除く): 31073496

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 29, 37, 58, 74, 87, 111, 116, 148, 174, 222, 232, 296, 348, 444, 696, 727, 888, 1073, 1454, 2146, 2181, 2908, 3219, 4292, 4362, 5816, 6438, 8584, 8724, 12876, 17448, 21083, 25752, 26899, 42166, 53798, 63249, 80697, 84332, 107596, 126498, 161394, 168664, 215192, 252996, 322788, 505992, 645576, 780071, 1560142, 2340213, 3120284, 4680426, 6240568, 9360852, 18721704]

約数ペア:

[(1, 18721704), (2, 9360852), (3, 6240568), (4, 4680426), (6, 3120284), (8, 2340213), (12, 1560142), (24, 780071), (29, 645576), (37, 505992), (58, 322788), (74, 252996), (87, 215192), (111, 168664), (116, 161394), (148, 126498), (174, 107596), (222, 84332), (232, 80697), (296, 63249), (348, 53798), (444, 42166), (696, 26899), (727, 25752), (888, 21083), (1073, 17448), (1454, 12876), (2146, 8724), (2181, 8584), (2908, 6438), (3219, 5816), (4292, 4362)]