21398230

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1$

素因数の和:253

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 25050410

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 83, 127, 145, 166, 203, 254, 290, 406, 415, 581, 635, 830, 889, 1015, 1162, 1270, 1778, 2030, 2407, 2905, 3683, 4445, 4814, 5810, 7366, 8890, 10541, 12035, 16849, 18415, 21082, 24070, 25781, 33698, 36830, 51562, 52705, 73787, 84245, 105410, 128905, 147574, 168490, 257810, 305689, 368935, 611378, 737870, 1528445, 2139823, 3056890, 4279646, 10699115, 21398230]

約数ペア:

[(1, 21398230), (2, 10699115), (5, 4279646), (7, 3056890), (10, 2139823), (14, 1528445), (29, 737870), (35, 611378), (58, 368935), (70, 305689), (83, 257810), (127, 168490), (145, 147574), (166, 128905), (203, 105410), (254, 84245), (290, 73787), (406, 52705), (415, 51562), (581, 36830), (635, 33698), (830, 25781), (889, 24070), (1015, 21082), (1162, 18415), (1270, 16849), (1778, 12035), (2030, 10541), (2407, 8890), (2905, 7366), (3683, 5810), (4445, 4814)]