21703670

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{331}}^1$

素因数の和:500

約数の個数: 32

約数和(自身を含む): 40158720

約数和(自身を除く): 18455050

約数列:

[1, 2, 5, 10, 79, 83, 158, 166, 331, 395, 415, 662, 790, 830, 1655, 3310, 6557, 13114, 26149, 27473, 32785, 52298, 54946, 65570, 130745, 137365, 261490, 274730, 2170367, 4340734, 10851835, 21703670]

約数ペア:

[(1, 21703670), (2, 10851835), (5, 4340734), (10, 2170367), (79, 274730), (83, 261490), (158, 137365), (166, 130745), (331, 65570), (395, 54946), (415, 52298), (662, 32785), (790, 27473), (830, 26149), (1655, 13114), (3310, 6557)]