201881421

素因数分解:

$3^2\times 7^2\times {\mathrm{59}}^1\times {\mathrm{7759}}^1$

素因数の和:7838

約数の個数: 36

約数和(自身を含む): 345009600

約数和(自身を除く): 143128179

約数列:

[1, 3, 7, 9, 21, 49, 59, 63, 147, 177, 413, 441, 531, 1239, 2891, 3717, 7759, 8673, 23277, 26019, 54313, 69831, 162939, 380191, 457781, 488817, 1140573, 1373343, 3204467, 3421719, 4120029, 9613401, 22431269, 28840203, 67293807, 201881421]

約数ペア:

[(1, 201881421), (3, 67293807), (7, 28840203), (9, 22431269), (21, 9613401), (49, 4120029), (59, 3421719), (63, 3204467), (147, 1373343), (177, 1140573), (413, 488817), (441, 457781), (531, 380191), (1239, 162939), (2891, 69831), (3717, 54313), (7759, 26019), (8673, 23277)]