21986350

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{257}}^1$

素因数の和:357

約数の個数: 48

約数和(自身を含む): 43189200

約数和(自身を除く): 21202850

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 59, 118, 145, 257, 290, 295, 514, 590, 725, 1285, 1450, 1475, 1711, 2570, 2950, 3422, 6425, 7453, 8555, 12850, 14906, 15163, 17110, 30326, 37265, 42775, 74530, 75815, 85550, 151630, 186325, 372650, 379075, 439727, 758150, 879454, 2198635, 4397270, 10993175, 21986350]

約数ペア:

[(1, 21986350), (2, 10993175), (5, 4397270), (10, 2198635), (25, 879454), (29, 758150), (50, 439727), (58, 379075), (59, 372650), (118, 186325), (145, 151630), (257, 85550), (290, 75815), (295, 74530), (514, 42775), (590, 37265), (725, 30326), (1285, 17110), (1450, 15163), (1475, 14906), (1711, 12850), (2570, 8555), (2950, 7453), (3422, 6425)]