21720007683

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{311}}^1\times {\mathrm{761}}^1$

素因数の和:1198

約数の個数: 80

約数和(自身を含む): 35901245952

約数和(自身を除く): 14181238269

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 103, 297, 309, 311, 761, 891, 927, 933, 1133, 2283, 2781, 2799, 3399, 3421, 6849, 8343, 8371, 8397, 10197, 10263, 20547, 25113, 25191, 30591, 30789, 32033, 61641, 75339, 78383, 91773, 92367, 96099, 226017, 235149, 236671, 277101, 288297, 352363, 678051, 705447, 710013, 862213, 864891, 1057089, 2116341, 2130039, 2586639, 2594673, 2603381, 3171267, 6349023, 6390117, 7759917, 7810143, 9513801, 19170351, 23279751, 23430429, 24377113, 28541403, 69839253, 70291287, 73131339, 210873861, 219394017, 268148243, 658182051, 804444729, 1974546153, 2413334187, 7240002561, 21720007683]

約数ペア:

[(1, 21720007683), (3, 7240002561), (9, 2413334187), (11, 1974546153), (27, 804444729), (33, 658182051), (81, 268148243), (99, 219394017), (103, 210873861), (297, 73131339), (309, 70291287), (311, 69839253), (761, 28541403), (891, 24377113), (927, 23430429), (933, 23279751), (1133, 19170351), (2283, 9513801), (2781, 7810143), (2799, 7759917), (3399, 6390117), (3421, 6349023), (6849, 3171267), (8343, 2603381), (8371, 2594673), (8397, 2586639), (10197, 2130039), (10263, 2116341), (20547, 1057089), (25113, 864891), (25191, 862213), (30591, 710013), (30789, 705447), (32033, 678051), (61641, 352363), (75339, 288297), (78383, 277101), (91773, 236671), (92367, 235149), (96099, 226017)]