28912359

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{743}}^1$

素因数の和:879

約数の個数: 32

約数和(自身を含む): 47139840

約数和(自身を除く): 18227481

約数列:

[1, 3, 7, 17, 21, 51, 109, 119, 327, 357, 743, 763, 1853, 2229, 2289, 5201, 5559, 12631, 12971, 15603, 37893, 38913, 80987, 88417, 242961, 265251, 566909, 1376779, 1700727, 4130337, 9637453, 28912359]

約数ペア:

[(1, 28912359), (3, 9637453), (7, 4130337), (17, 1700727), (21, 1376779), (51, 566909), (109, 265251), (119, 242961), (327, 88417), (357, 80987), (743, 38913), (763, 37893), (1853, 15603), (2229, 12971), (2289, 12631), (5201, 5559)]