28573909

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1447}}^1$

素因数の和:1505

約数の個数: 24

約数和(自身を含む): 36976128

約数和(自身を除く): 8402219

約数列:

[1, 7, 13, 31, 49, 91, 217, 403, 637, 1447, 1519, 2821, 10129, 18811, 19747, 44857, 70903, 131677, 313999, 583141, 921739, 2197993, 4081987, 28573909]

約数ペア:

[(1, 28573909), (7, 4081987), (13, 2197993), (31, 921739), (49, 583141), (91, 313999), (217, 131677), (403, 70903), (637, 44857), (1447, 19747), (1519, 18811), (2821, 10129)]