20939742

素因数分解:

$2^1\times 3^3\times {\mathrm{89}}^1\times {\mathrm{4357}}^1$

素因数の和:4457

約数の個数: 32

約数和(自身を含む): 47066400

約数和(自身を除く): 26126658

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 89, 178, 267, 534, 801, 1602, 2403, 4357, 4806, 8714, 13071, 26142, 39213, 78426, 117639, 235278, 387773, 775546, 1163319, 2326638, 3489957, 6979914, 10469871, 20939742]

約数ペア:

[(1, 20939742), (2, 10469871), (3, 6979914), (6, 3489957), (9, 2326638), (18, 1163319), (27, 775546), (54, 387773), (89, 235278), (178, 117639), (267, 78426), (534, 39213), (801, 26142), (1602, 13071), (2403, 8714), (4357, 4806)]