20588418

素因数分解:

$2^1\times 3^9\times {\mathrm{523}}^1$

素因数の和:552

約数の個数: 40

約数和(自身を含む): 46411728

約数和(自身を除く): 25823310

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 486, 523, 729, 1046, 1458, 1569, 2187, 3138, 4374, 4707, 6561, 9414, 13122, 14121, 19683, 28242, 39366, 42363, 84726, 127089, 254178, 381267, 762534, 1143801, 2287602, 3431403, 6862806, 10294209, 20588418]

約数ペア:

[(1, 20588418), (2, 10294209), (3, 6862806), (6, 3431403), (9, 2287602), (18, 1143801), (27, 762534), (54, 381267), (81, 254178), (162, 127089), (243, 84726), (486, 42363), (523, 39366), (729, 28242), (1046, 19683), (1458, 14121), (1569, 13122), (2187, 9414), (3138, 6561), (4374, 4707)]