18479601

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{79}}^2$

素因数の和:218

約数の個数: 36

約数和(自身を含む): 31554432

約数和(自身を除く): 13074831

約数列:

[1, 3, 7, 9, 21, 47, 63, 79, 141, 237, 329, 423, 553, 711, 987, 1659, 2961, 3713, 4977, 6241, 11139, 18723, 25991, 33417, 43687, 56169, 77973, 131061, 233919, 293327, 393183, 879981, 2053289, 2639943, 6159867, 18479601]

約数ペア:

[(1, 18479601), (3, 6159867), (7, 2639943), (9, 2053289), (21, 879981), (47, 393183), (63, 293327), (79, 233919), (141, 131061), (237, 77973), (329, 56169), (423, 43687), (553, 33417), (711, 25991), (987, 18723), (1659, 11139), (2961, 6241), (3713, 4977)]