21972327

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{383}}^1\times {\mathrm{1471}}^1$

素因数の和:1870

約数の個数: 16

約数和(自身を含む): 31653888

約数和(自身を除く): 9681561

約数列:

[1, 3, 13, 39, 383, 1149, 1471, 4413, 4979, 14937, 19123, 57369, 563393, 1690179, 7324109, 21972327]

約数ペア:

[(1, 21972327), (3, 7324109), (13, 1690179), (39, 563393), (383, 57369), (1149, 19123), (1471, 14937), (4413, 4979)]