18673928

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{227}}^1$

素因数の和:366

約数の個数: 64

約数和(自身を含む): 43666560

約数和(自身を除く): 24992632

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 113, 182, 226, 227, 364, 452, 454, 728, 791, 904, 908, 1469, 1582, 1589, 1816, 2938, 2951, 3164, 3178, 5876, 5902, 6328, 6356, 10283, 11752, 11804, 12712, 20566, 20657, 23608, 25651, 41132, 41314, 51302, 82264, 82628, 102604, 165256, 179557, 205208, 333463, 359114, 666926, 718228, 1333852, 1436456, 2334241, 2667704, 4668482, 9336964, 18673928]

約数ペア:

[(1, 18673928), (2, 9336964), (4, 4668482), (7, 2667704), (8, 2334241), (13, 1436456), (14, 1333852), (26, 718228), (28, 666926), (52, 359114), (56, 333463), (91, 205208), (104, 179557), (113, 165256), (182, 102604), (226, 82628), (227, 82264), (364, 51302), (452, 41314), (454, 41132), (728, 25651), (791, 23608), (904, 20657), (908, 20566), (1469, 12712), (1582, 11804), (1589, 11752), (1816, 10283), (2938, 6356), (2951, 6328), (3164, 5902), (3178, 5876)]