21538832

素因数分解:

$2^4\times 7^2\times {\mathrm{83}}^1\times {\mathrm{331}}^1$

素因数の和:436

約数の個数: 60

約数和(自身を含む): 49278096

約数和(自身を除く): 27739264

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 83, 98, 112, 166, 196, 331, 332, 392, 581, 662, 664, 784, 1162, 1324, 1328, 2317, 2324, 2648, 4067, 4634, 4648, 5296, 8134, 9268, 9296, 16219, 16268, 18536, 27473, 32438, 32536, 37072, 54946, 64876, 65072, 109892, 129752, 192311, 219784, 259504, 384622, 439568, 769244, 1346177, 1538488, 2692354, 3076976, 5384708, 10769416, 21538832]

約数ペア:

[(1, 21538832), (2, 10769416), (4, 5384708), (7, 3076976), (8, 2692354), (14, 1538488), (16, 1346177), (28, 769244), (49, 439568), (56, 384622), (83, 259504), (98, 219784), (112, 192311), (166, 129752), (196, 109892), (331, 65072), (332, 64876), (392, 54946), (581, 37072), (662, 32536), (664, 32438), (784, 27473), (1162, 18536), (1324, 16268), (1328, 16219), (2317, 9296), (2324, 9268), (2648, 8134), (4067, 5296), (4634, 4648)]