21374856

素因数分解:

$2^3\times 3^2\times {\mathrm{29}}^2\times {\mathrm{353}}^1$

素因数の和:423

約数の個数: 72

約数和(自身を含む): 60125130

約数和(自身を除く): 38750274

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 29, 36, 58, 72, 87, 116, 174, 232, 261, 348, 353, 522, 696, 706, 841, 1044, 1059, 1412, 1682, 2088, 2118, 2523, 2824, 3177, 3364, 4236, 5046, 6354, 6728, 7569, 8472, 10092, 10237, 12708, 15138, 20184, 20474, 25416, 30276, 30711, 40948, 60552, 61422, 81896, 92133, 122844, 184266, 245688, 296873, 368532, 593746, 737064, 890619, 1187492, 1781238, 2374984, 2671857, 3562476, 5343714, 7124952, 10687428, 21374856]

約数ペア:

[(1, 21374856), (2, 10687428), (3, 7124952), (4, 5343714), (6, 3562476), (8, 2671857), (9, 2374984), (12, 1781238), (18, 1187492), (24, 890619), (29, 737064), (36, 593746), (58, 368532), (72, 296873), (87, 245688), (116, 184266), (174, 122844), (232, 92133), (261, 81896), (348, 61422), (353, 60552), (522, 40948), (696, 30711), (706, 30276), (841, 25416), (1044, 20474), (1059, 20184), (1412, 15138), (1682, 12708), (2088, 10237), (2118, 10092), (2523, 8472), (2824, 7569), (3177, 6728), (3364, 6354), (4236, 5046)]