25781119

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:120

約数の個数: 48

約数和(自身を含む): 35604480

約数和(自身を除く): 9823361

約数列:

[1, 7, 13, 19, 31, 37, 91, 133, 169, 217, 247, 259, 403, 481, 589, 703, 1147, 1183, 1729, 2821, 3211, 3367, 4123, 4921, 5239, 6253, 7657, 8029, 9139, 14911, 21793, 22477, 36673, 43771, 53599, 63973, 99541, 104377, 118807, 152551, 193843, 283309, 696787, 831649, 1356901, 1983163, 3683017, 25781119]

約数ペア:

[(1, 25781119), (7, 3683017), (13, 1983163), (19, 1356901), (31, 831649), (37, 696787), (91, 283309), (133, 193843), (169, 152551), (217, 118807), (247, 104377), (259, 99541), (403, 63973), (481, 53599), (589, 43771), (703, 36673), (1147, 22477), (1183, 21793), (1729, 14911), (2821, 9139), (3211, 8029), (3367, 7657), (4123, 6253), (4921, 5239)]