21986349

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13597}}^1$

素因数の和:13625

約数の個数: 24

約数和(自身を含む): 37204128

約数和(自身を除く): 15217779

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 13597, 40791, 95179, 149567, 285537, 448701, 666253, 1046969, 1998759, 3140907, 7328783, 21986349]

約数ペア:

[(1, 21986349), (3, 7328783), (7, 3140907), (11, 1998759), (21, 1046969), (33, 666253), (49, 448701), (77, 285537), (147, 149567), (231, 95179), (539, 40791), (1617, 13597)]