72810981

素因数分解:

$3^4\times {\mathrm{383}}^1\times {\mathrm{2347}}^1$

素因数の和:2742

約数の個数: 20

約数和(自身を含む): 109097472

約数和(自身を除く): 36286491

約数列:

[1, 3, 9, 27, 81, 383, 1149, 2347, 3447, 7041, 10341, 21123, 31023, 63369, 190107, 898901, 2696703, 8090109, 24270327, 72810981]

約数ペア:

[(1, 72810981), (3, 24270327), (9, 8090109), (27, 2696703), (81, 898901), (383, 190107), (1149, 63369), (2347, 31023), (3447, 21123), (7041, 10341)]