20870838

素因数分解:

$2^1\times 3^3\times {\mathrm{523}}^1\times {\mathrm{739}}^1$

素因数の和:1273

約数の個数: 32

約数和(自身を含む): 46531200

約数和(自身を除く): 25660362

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 523, 739, 1046, 1478, 1569, 2217, 3138, 4434, 4707, 6651, 9414, 13302, 14121, 19953, 28242, 39906, 386497, 772994, 1159491, 2318982, 3478473, 6956946, 10435419, 20870838]

約数ペア:

[(1, 20870838), (2, 10435419), (3, 6956946), (6, 3478473), (9, 2318982), (18, 1159491), (27, 772994), (54, 386497), (523, 39906), (739, 28242), (1046, 19953), (1478, 14121), (1569, 13302), (2217, 9414), (3138, 6651), (4434, 4707)]