21712428

素因数分解:

$2^2\times 3^3\times {\mathrm{127}}^1\times {\mathrm{1583}}^1$

素因数の和:1723

約数の個数: 48

約数和(自身を含む): 56770560

約数和(自身を除く): 35058132

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 127, 254, 381, 508, 762, 1143, 1524, 1583, 2286, 3166, 3429, 4572, 4749, 6332, 6858, 9498, 13716, 14247, 18996, 28494, 42741, 56988, 85482, 170964, 201041, 402082, 603123, 804164, 1206246, 1809369, 2412492, 3618738, 5428107, 7237476, 10856214, 21712428]

約数ペア:

[(1, 21712428), (2, 10856214), (3, 7237476), (4, 5428107), (6, 3618738), (9, 2412492), (12, 1809369), (18, 1206246), (27, 804164), (36, 603123), (54, 402082), (108, 201041), (127, 170964), (254, 85482), (381, 56988), (508, 42741), (762, 28494), (1143, 18996), (1524, 14247), (1583, 13716), (2286, 9498), (3166, 6858), (3429, 6332), (4572, 4749)]