21070840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{75253}}^1$

素因数の和:75271

約数の個数: 32

約数和(自身を含む): 54182880

約数和(自身を除く): 33112040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 75253, 150506, 301012, 376265, 526771, 602024, 752530, 1053542, 1505060, 2107084, 2633855, 3010120, 4214168, 5267710, 10535420, 21070840]

約数ペア:

[(1, 21070840), (2, 10535420), (4, 5267710), (5, 4214168), (7, 3010120), (8, 2633855), (10, 2107084), (14, 1505060), (20, 1053542), (28, 752530), (35, 602024), (40, 526771), (56, 376265), (70, 301012), (140, 150506), (280, 75253)]