21347820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3041}}^1$

素因数の和:3072

約数の個数: 96

約数和(自身を含む): 71547840

約数和(自身を除く): 50200020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 90, 108, 117, 130, 135, 156, 180, 195, 234, 260, 270, 351, 390, 468, 540, 585, 702, 780, 1170, 1404, 1755, 2340, 3041, 3510, 6082, 7020, 9123, 12164, 15205, 18246, 27369, 30410, 36492, 39533, 45615, 54738, 60820, 79066, 82107, 91230, 109476, 118599, 136845, 158132, 164214, 182460, 197665, 237198, 273690, 328428, 355797, 395330, 410535, 474396, 547380, 592995, 711594, 790660, 821070, 1067391, 1185990, 1423188, 1642140, 1778985, 2134782, 2371980, 3557970, 4269564, 5336955, 7115940, 10673910, 21347820]

約数ペア:

[(1, 21347820), (2, 10673910), (3, 7115940), (4, 5336955), (5, 4269564), (6, 3557970), (9, 2371980), (10, 2134782), (12, 1778985), (13, 1642140), (15, 1423188), (18, 1185990), (20, 1067391), (26, 821070), (27, 790660), (30, 711594), (36, 592995), (39, 547380), (45, 474396), (52, 410535), (54, 395330), (60, 355797), (65, 328428), (78, 273690), (90, 237198), (108, 197665), (117, 182460), (130, 164214), (135, 158132), (156, 136845), (180, 118599), (195, 109476), (234, 91230), (260, 82107), (270, 79066), (351, 60820), (390, 54738), (468, 45615), (540, 39533), (585, 36492), (702, 30410), (780, 27369), (1170, 18246), (1404, 15205), (1755, 12164), (2340, 9123), (3041, 7020), (3510, 6082)]