21321993

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{383}}^1$

素因数の和:645

約数の個数: 32

約数和(自身を含む): 35684352

約数和(自身を除く): 14362359

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 241, 383, 723, 1149, 1687, 2651, 2681, 4213, 5061, 7953, 8043, 12639, 18557, 29491, 55671, 88473, 92303, 276909, 646121, 1015333, 1938363, 3045999, 7107331, 21321993]

約数ペア:

[(1, 21321993), (3, 7107331), (7, 3045999), (11, 1938363), (21, 1015333), (33, 646121), (77, 276909), (231, 92303), (241, 88473), (383, 55671), (723, 29491), (1149, 18557), (1687, 12639), (2651, 8043), (2681, 7953), (4213, 5061)]