221821812

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{179}}^1\times {\mathrm{1187}}^1$

素因数の和:1405

約数の個数: 72

約数和(自身を含む): 583783200

約数和(自身を除く): 361961388

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 116, 174, 179, 261, 348, 358, 522, 537, 716, 1044, 1074, 1187, 1611, 2148, 2374, 3222, 3561, 4748, 5191, 6444, 7122, 10382, 10683, 14244, 15573, 20764, 21366, 31146, 34423, 42732, 46719, 62292, 68846, 93438, 103269, 137692, 186876, 206538, 212473, 309807, 413076, 424946, 619614, 637419, 849892, 1239228, 1274838, 1912257, 2549676, 3824514, 6161717, 7649028, 12323434, 18485151, 24646868, 36970302, 55455453, 73940604, 110910906, 221821812]

約数ペア:

[(1, 221821812), (2, 110910906), (3, 73940604), (4, 55455453), (6, 36970302), (9, 24646868), (12, 18485151), (18, 12323434), (29, 7649028), (36, 6161717), (58, 3824514), (87, 2549676), (116, 1912257), (174, 1274838), (179, 1239228), (261, 849892), (348, 637419), (358, 619614), (522, 424946), (537, 413076), (716, 309807), (1044, 212473), (1074, 206538), (1187, 186876), (1611, 137692), (2148, 103269), (2374, 93438), (3222, 68846), (3561, 62292), (4748, 46719), (5191, 42732), (6444, 34423), (7122, 31146), (10382, 21366), (10683, 20764), (14244, 15573)]