22778973

素因数分解:

$3^2\times 7^3\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:231

約数の個数: 48

約数和(自身を含む): 39436800

約数和(自身を除く): 16657827

約数列:

[1, 3, 7, 9, 21, 47, 49, 63, 141, 147, 157, 329, 343, 423, 441, 471, 987, 1029, 1099, 1413, 2303, 2961, 3087, 3297, 6909, 7379, 7693, 9891, 16121, 20727, 22137, 23079, 48363, 51653, 53851, 66411, 69237, 145089, 154959, 161553, 361571, 464877, 484659, 1084713, 2530997, 3254139, 7592991, 22778973]

約数ペア:

[(1, 22778973), (3, 7592991), (7, 3254139), (9, 2530997), (21, 1084713), (47, 484659), (49, 464877), (63, 361571), (141, 161553), (147, 154959), (157, 145089), (329, 69237), (343, 66411), (423, 53851), (441, 51653), (471, 48363), (987, 23079), (1029, 22137), (1099, 20727), (1413, 16121), (2303, 9891), (2961, 7693), (3087, 7379), (3297, 6909)]