19691919

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{3581}}^1$

素因数の和:3647

約数の個数: 24

約数和(自身を含む): 31292352

約数和(自身を除く): 11600433

約数列:

[1, 3, 9, 13, 39, 47, 117, 141, 423, 611, 1833, 3581, 5499, 10743, 32229, 46553, 139659, 168307, 418977, 504921, 1514763, 2187991, 6563973, 19691919]

約数ペア:

[(1, 19691919), (3, 6563973), (9, 2187991), (13, 1514763), (39, 504921), (47, 418977), (117, 168307), (141, 139659), (423, 46553), (611, 32229), (1833, 10743), (3581, 5499)]