21173570

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{8369}}^1$

素因数の和:8410

約数の個数: 32

約数和(自身を含む): 43390080

約数和(自身を除く): 22216510

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 1265, 2530, 8369, 16738, 41845, 83690, 92059, 184118, 192487, 384974, 460295, 920590, 962435, 1924870, 2117357, 4234714, 10586785, 21173570]

約数ペア:

[(1, 21173570), (2, 10586785), (5, 4234714), (10, 2117357), (11, 1924870), (22, 962435), (23, 920590), (46, 460295), (55, 384974), (110, 192487), (115, 184118), (230, 92059), (253, 83690), (506, 41845), (1265, 16738), (2530, 8369)]