18794139

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1601}}^1$

素因数の和:1667

約数の個数: 32

約数和(自身を含む): 31578624

約数和(自身を除く): 12784485

約数列:

[1, 3, 7, 13, 21, 39, 43, 91, 129, 273, 301, 559, 903, 1601, 1677, 3913, 4803, 11207, 11739, 20813, 33621, 62439, 68843, 145691, 206529, 437073, 481901, 894959, 1445703, 2684877, 6264713, 18794139]

約数ペア:

[(1, 18794139), (3, 6264713), (7, 2684877), (13, 1445703), (21, 894959), (39, 481901), (43, 437073), (91, 206529), (129, 145691), (273, 68843), (301, 62439), (559, 33621), (903, 20813), (1601, 11739), (1677, 11207), (3913, 4803)]