20818524

素因数分解:

$2^2\times 3^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{193}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 49865760

約数和(自身を除く): 29047236

約数列:

[1, 2, 3, 4, 6, 12, 89, 101, 178, 193, 202, 267, 303, 356, 386, 404, 534, 579, 606, 772, 1068, 1158, 1212, 2316, 8989, 17177, 17978, 19493, 26967, 34354, 35956, 38986, 51531, 53934, 58479, 68708, 77972, 103062, 107868, 116958, 206124, 233916, 1734877, 3469754, 5204631, 6939508, 10409262, 20818524]

約数ペア:

[(1, 20818524), (2, 10409262), (3, 6939508), (4, 5204631), (6, 3469754), (12, 1734877), (89, 233916), (101, 206124), (178, 116958), (193, 107868), (202, 103062), (267, 77972), (303, 68708), (356, 58479), (386, 53934), (404, 51531), (534, 38986), (579, 35956), (606, 34354), (772, 26967), (1068, 19493), (1158, 17978), (1212, 17177), (2316, 8989)]