21480368

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{14753}}^1$

素因数の和:14781

約数の個数: 40

約数和(自身を含む): 51225888

約数和(自身を除く): 29745520

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 14753, 29506, 59012, 103271, 118024, 191789, 206542, 236048, 383578, 413084, 767156, 826168, 1342523, 1534312, 1652336, 2685046, 3068624, 5370092, 10740184, 21480368]

約数ペア:

[(1, 21480368), (2, 10740184), (4, 5370092), (7, 3068624), (8, 2685046), (13, 1652336), (14, 1534312), (16, 1342523), (26, 826168), (28, 767156), (52, 413084), (56, 383578), (91, 236048), (104, 206542), (112, 191789), (182, 118024), (208, 103271), (364, 59012), (728, 29506), (1456, 14753)]