21121802

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1$

素因数の和:410

約数の個数: 32

約数和(自身を含む): 35758800

約数和(自身を除く): 14636998

約数列:

[1, 2, 13, 26, 29, 58, 109, 218, 257, 377, 514, 754, 1417, 2834, 3161, 3341, 6322, 6682, 7453, 14906, 28013, 41093, 56026, 82186, 96889, 193778, 364169, 728338, 812377, 1624754, 10560901, 21121802]

約数ペア:

[(1, 21121802), (2, 10560901), (13, 1624754), (26, 812377), (29, 728338), (58, 364169), (109, 193778), (218, 96889), (257, 82186), (377, 56026), (514, 41093), (754, 28013), (1417, 14906), (2834, 7453), (3161, 6682), (3341, 6322)]