21087510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{9629}}^1$

素因数の和:9712

約数の個数: 32

約数和(自身を含む): 51308640

約数和(自身を除く): 30221130

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 73, 146, 219, 365, 438, 730, 1095, 2190, 9629, 19258, 28887, 48145, 57774, 96290, 144435, 288870, 702917, 1405834, 2108751, 3514585, 4217502, 7029170, 10543755, 21087510]

約数ペア:

[(1, 21087510), (2, 10543755), (3, 7029170), (5, 4217502), (6, 3514585), (10, 2108751), (15, 1405834), (30, 702917), (73, 288870), (146, 144435), (219, 96290), (365, 57774), (438, 48145), (730, 28887), (1095, 19258), (2190, 9629)]