20888556

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{457}}^1$

素因数の和:770

約数の個数: 48

約数和(自身を含む): 52783584

約数和(自身を除く): 31895028

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 293, 457, 586, 879, 914, 1172, 1371, 1758, 1828, 2742, 3516, 3809, 5484, 5941, 7618, 11427, 11882, 15236, 17823, 22854, 23764, 35646, 45708, 71292, 133901, 267802, 401703, 535604, 803406, 1606812, 1740713, 3481426, 5222139, 6962852, 10444278, 20888556]

約数ペア:

[(1, 20888556), (2, 10444278), (3, 6962852), (4, 5222139), (6, 3481426), (12, 1740713), (13, 1606812), (26, 803406), (39, 535604), (52, 401703), (78, 267802), (156, 133901), (293, 71292), (457, 45708), (586, 35646), (879, 23764), (914, 22854), (1172, 17823), (1371, 15236), (1758, 11882), (1828, 11427), (2742, 7618), (3516, 5941), (3809, 5484)]