21497420735

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{483251}}^1$

素因数の和:483335

約数の個数: 32

約数和(自身を含む): 31175553024

約数和(自身を除く): 9678132289

約数列:

[1, 5, 7, 31, 35, 41, 155, 205, 217, 287, 1085, 1271, 1435, 6355, 8897, 44485, 483251, 2416255, 3382757, 14980781, 16913785, 19813291, 74903905, 99066455, 104865467, 138693037, 524327335, 614212021, 693465185, 3071060105, 4299484147, 21497420735]

約数ペア:

[(1, 21497420735), (5, 4299484147), (7, 3071060105), (31, 693465185), (35, 614212021), (41, 524327335), (155, 138693037), (205, 104865467), (217, 99066455), (287, 74903905), (1085, 19813291), (1271, 16913785), (1435, 14980781), (6355, 3382757), (8897, 2416255), (44485, 483251)]