21464040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13759}}^1$

素因数の和:13786

約数の個数: 64

約数和(自身を含む): 69350400

約数和(自身を除く): 47886360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 13759, 27518, 41277, 55036, 68795, 82554, 110072, 137590, 165108, 178867, 206385, 275180, 330216, 357734, 412770, 536601, 550360, 715468, 825540, 894335, 1073202, 1430936, 1651080, 1788670, 2146404, 2683005, 3577340, 4292808, 5366010, 7154680, 10732020, 21464040]

約数ペア:

[(1, 21464040), (2, 10732020), (3, 7154680), (4, 5366010), (5, 4292808), (6, 3577340), (8, 2683005), (10, 2146404), (12, 1788670), (13, 1651080), (15, 1430936), (20, 1073202), (24, 894335), (26, 825540), (30, 715468), (39, 550360), (40, 536601), (52, 412770), (60, 357734), (65, 330216), (78, 275180), (104, 206385), (120, 178867), (130, 165108), (156, 137590), (195, 110072), (260, 82554), (312, 68795), (390, 55036), (520, 41277), (780, 27518), (1560, 13759)]