21221746

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^3$

素因数の和:96

約数の個数: 64

約数和(自身を含む): 43787520

約数和(自身を除く): 22565774

約数列:

[1, 2, 7, 13, 14, 17, 19, 26, 34, 38, 91, 119, 133, 182, 221, 238, 247, 266, 323, 361, 442, 494, 646, 722, 1547, 1729, 2261, 2527, 3094, 3458, 4199, 4522, 4693, 5054, 6137, 6859, 8398, 9386, 12274, 13718, 29393, 32851, 42959, 48013, 58786, 65702, 79781, 85918, 89167, 96026, 116603, 159562, 178334, 233206, 558467, 624169, 816221, 1116934, 1248338, 1515839, 1632442, 3031678, 10610873, 21221746]

約数ペア:

[(1, 21221746), (2, 10610873), (7, 3031678), (13, 1632442), (14, 1515839), (17, 1248338), (19, 1116934), (26, 816221), (34, 624169), (38, 558467), (91, 233206), (119, 178334), (133, 159562), (182, 116603), (221, 96026), (238, 89167), (247, 85918), (266, 79781), (323, 65702), (361, 58786), (442, 48013), (494, 42959), (646, 32851), (722, 29393), (1547, 13718), (1729, 12274), (2261, 9386), (2527, 8398), (3094, 6859), (3458, 6137), (4199, 5054), (4522, 4693)]