21452910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{263}}^1\times {\mathrm{2719}}^1$

素因数の和:2992

約数の個数: 32

約数和(自身を含む): 51701760

約数和(自身を除く): 30248850

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 263, 526, 789, 1315, 1578, 2630, 2719, 3945, 5438, 7890, 8157, 13595, 16314, 27190, 40785, 81570, 715097, 1430194, 2145291, 3575485, 4290582, 7150970, 10726455, 21452910]

約数ペア:

[(1, 21452910), (2, 10726455), (3, 7150970), (5, 4290582), (6, 3575485), (10, 2145291), (15, 1430194), (30, 715097), (263, 81570), (526, 40785), (789, 27190), (1315, 16314), (1578, 13595), (2630, 8157), (2719, 7890), (3945, 5438)]