21195573

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{17107}}^1$

素因数の和:17176

約数の個数: 16

約数和(自身を含む): 32847360

約数和(自身を除く): 11651787

約数列:

[1, 3, 7, 21, 59, 177, 413, 1239, 17107, 51321, 119749, 359247, 1009313, 3027939, 7065191, 21195573]

約数ペア:

[(1, 21195573), (3, 7065191), (7, 3027939), (21, 1009313), (59, 359247), (177, 119749), (413, 51321), (1239, 17107)]