21910407

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{1787}}^1$

素因数の和:1918

約数の個数: 16

約数和(自身を含む): 30152832

約数和(自身を除く): 8242425

約数列:

[1, 3, 61, 67, 183, 201, 1787, 4087, 5361, 12261, 109007, 119729, 327021, 359187, 7303469, 21910407]

約数ペア:

[(1, 21910407), (3, 7303469), (61, 359187), (67, 327021), (183, 119729), (201, 109007), (1787, 12261), (4087, 5361)]