21842552

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 46656000

約数和(自身を除く): 24813448

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 79, 107, 136, 152, 158, 214, 316, 323, 428, 632, 646, 856, 1292, 1343, 1501, 1819, 2033, 2584, 2686, 3002, 3638, 4066, 5372, 6004, 7276, 8132, 8453, 10744, 12008, 14552, 16264, 16906, 25517, 33812, 34561, 51034, 67624, 69122, 102068, 138244, 143701, 160607, 204136, 276488, 287402, 321214, 574804, 642428, 1149608, 1284856, 2730319, 5460638, 10921276, 21842552]

約数ペア:

[(1, 21842552), (2, 10921276), (4, 5460638), (8, 2730319), (17, 1284856), (19, 1149608), (34, 642428), (38, 574804), (68, 321214), (76, 287402), (79, 276488), (107, 204136), (136, 160607), (152, 143701), (158, 138244), (214, 102068), (316, 69122), (323, 67624), (428, 51034), (632, 34561), (646, 33812), (856, 25517), (1292, 16906), (1343, 16264), (1501, 14552), (1819, 12008), (2033, 10744), (2584, 8453), (2686, 8132), (3002, 7276), (3638, 6004), (4066, 5372)]