21130354

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1889}}^1$

素因数の和:1962

約数の個数: 32

約数和(自身を含む): 39191040

約数和(自身を除く): 18060686

約数列:

[1, 2, 7, 14, 17, 34, 47, 94, 119, 238, 329, 658, 799, 1598, 1889, 3778, 5593, 11186, 13223, 26446, 32113, 64226, 88783, 177566, 224791, 449582, 621481, 1242962, 1509311, 3018622, 10565177, 21130354]

約数ペア:

[(1, 21130354), (2, 10565177), (7, 3018622), (14, 1509311), (17, 1242962), (34, 621481), (47, 449582), (94, 224791), (119, 177566), (238, 88783), (329, 64226), (658, 32113), (799, 26446), (1598, 13223), (1889, 11186), (3778, 5593)]