644234838

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{8259421}}^1$

素因数の和:8259439

約数の個数: 16

約数和(自身を含む): 1387582896

約数和(自身を除く): 743348058

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 8259421, 16518842, 24778263, 49556526, 107372473, 214744946, 322117419, 644234838]

約数ペア:

[(1, 644234838), (2, 322117419), (3, 214744946), (6, 107372473), (13, 49556526), (26, 24778263), (39, 16518842), (78, 8259421)]