21499089

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^3\times {\mathrm{31}}^1$

素因数の和:122

約数の個数: 32

約数和(自身を含む): 32563200

約数和(自身を除く): 11064111

約数列:

[1, 3, 19, 23, 31, 57, 69, 93, 437, 529, 589, 713, 1311, 1587, 1767, 2139, 10051, 12167, 13547, 16399, 30153, 36501, 40641, 49197, 231173, 311581, 377177, 693519, 934743, 1131531, 7166363, 21499089]

約数ペア:

[(1, 21499089), (3, 7166363), (19, 1131531), (23, 934743), (31, 693519), (57, 377177), (69, 311581), (93, 231173), (437, 49197), (529, 40641), (589, 36501), (713, 30153), (1311, 16399), (1587, 13547), (1767, 12167), (2139, 10051)]