20388914

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{3863}}^1$

素因数の和:3914

約数の個数: 32

約数和(自身を含む): 38949120

約数和(自身を除く): 18560206

約数列:

[1, 2, 7, 13, 14, 26, 29, 58, 91, 182, 203, 377, 406, 754, 2639, 3863, 5278, 7726, 27041, 50219, 54082, 100438, 112027, 224054, 351533, 703066, 784189, 1456351, 1568378, 2912702, 10194457, 20388914]

約数ペア:

[(1, 20388914), (2, 10194457), (7, 2912702), (13, 1568378), (14, 1456351), (26, 784189), (29, 703066), (58, 351533), (91, 224054), (182, 112027), (203, 100438), (377, 54082), (406, 50219), (754, 27041), (2639, 7726), (3863, 5278)]