21453395

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2269}}^1$

素因数の和:2366

約数の個数: 16

約数和(自身を含む): 27022080

約数和(自身を除く): 5568685

約数列:

[1, 5, 31, 61, 155, 305, 1891, 2269, 9455, 11345, 70339, 138409, 351695, 692045, 4290679, 21453395]

約数ペア:

[(1, 21453395), (5, 4290679), (31, 692045), (61, 351695), (155, 138409), (305, 70339), (1891, 11345), (2269, 9455)]