21322470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{54673}}^1$

素因数の和:54696

約数の個数: 32

約数和(自身を含む): 55111392

約数和(自身を除く): 33788922

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 54673, 109346, 164019, 273365, 328038, 546730, 710749, 820095, 1421498, 1640190, 2132247, 3553745, 4264494, 7107490, 10661235, 21322470]

約数ペア:

[(1, 21322470), (2, 10661235), (3, 7107490), (5, 4264494), (6, 3553745), (10, 2132247), (13, 1640190), (15, 1421498), (26, 820095), (30, 710749), (39, 546730), (65, 328038), (78, 273365), (130, 164019), (195, 109346), (390, 54673)]