21785010

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{673}}^1$

素因数の和:779

約数の個数: 64

約数和(自身を含む): 57068928

約数和(自身を除く): 35283918

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 83, 130, 166, 195, 249, 390, 415, 498, 673, 830, 1079, 1245, 1346, 2019, 2158, 2490, 3237, 3365, 4038, 5395, 6474, 6730, 8749, 10095, 10790, 16185, 17498, 20190, 26247, 32370, 43745, 52494, 55859, 87490, 111718, 131235, 167577, 262470, 279295, 335154, 558590, 726167, 837885, 1452334, 1675770, 2178501, 3630835, 4357002, 7261670, 10892505, 21785010]

約数ペア:

[(1, 21785010), (2, 10892505), (3, 7261670), (5, 4357002), (6, 3630835), (10, 2178501), (13, 1675770), (15, 1452334), (26, 837885), (30, 726167), (39, 558590), (65, 335154), (78, 279295), (83, 262470), (130, 167577), (166, 131235), (195, 111718), (249, 87490), (390, 55859), (415, 52494), (498, 43745), (673, 32370), (830, 26247), (1079, 20190), (1245, 17498), (1346, 16185), (2019, 10790), (2158, 10095), (2490, 8749), (3237, 6730), (3365, 6474), (4038, 5395)]