21434800

素因数分解:

$2^4\times 5^2\times {\mathrm{41}}^1\times {\mathrm{1307}}^1$

素因数の和:1366

約数の個数: 60

約数和(自身を含む): 52793496

約数和(自身を除く): 31358696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 80, 82, 100, 164, 200, 205, 328, 400, 410, 656, 820, 1025, 1307, 1640, 2050, 2614, 3280, 4100, 5228, 6535, 8200, 10456, 13070, 16400, 20912, 26140, 32675, 52280, 53587, 65350, 104560, 107174, 130700, 214348, 261400, 267935, 428696, 522800, 535870, 857392, 1071740, 1339675, 2143480, 2679350, 4286960, 5358700, 10717400, 21434800]

約数ペア:

[(1, 21434800), (2, 10717400), (4, 5358700), (5, 4286960), (8, 2679350), (10, 2143480), (16, 1339675), (20, 1071740), (25, 857392), (40, 535870), (41, 522800), (50, 428696), (80, 267935), (82, 261400), (100, 214348), (164, 130700), (200, 107174), (205, 104560), (328, 65350), (400, 53587), (410, 52280), (656, 32675), (820, 26140), (1025, 20912), (1307, 16400), (1640, 13070), (2050, 10456), (2614, 8200), (3280, 6535), (4100, 5228)]