1638266643

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{523}}^1\times {\mathrm{653}}^1$

素因数の和:1236

約数の個数: 48

約数和(自身を含む): 2619568224

約数和(自身を除く): 981301581

約数列:

[1, 3, 9, 13, 39, 41, 117, 123, 369, 523, 533, 653, 1569, 1599, 1959, 4707, 4797, 5877, 6799, 8489, 20397, 21443, 25467, 26773, 61191, 64329, 76401, 80319, 192987, 240957, 278759, 341519, 348049, 836277, 1024557, 1044147, 2508831, 3073671, 3132441, 4439747, 13319241, 14002279, 39957723, 42006837, 126020511, 182029627, 546088881, 1638266643]

約数ペア:

[(1, 1638266643), (3, 546088881), (9, 182029627), (13, 126020511), (39, 42006837), (41, 39957723), (117, 14002279), (123, 13319241), (369, 4439747), (523, 3132441), (533, 3073671), (653, 2508831), (1569, 1044147), (1599, 1024557), (1959, 836277), (4707, 348049), (4797, 341519), (5877, 278759), (6799, 240957), (8489, 192987), (20397, 80319), (21443, 76401), (25467, 64329), (26773, 61191)]