31581004

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1637}}^1$

素因数の和:1714

約数の個数: 48

約数和(自身を含む): 69346368

約数和(自身を除く): 37765364

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 53, 91, 106, 182, 212, 364, 371, 689, 742, 1378, 1484, 1637, 2756, 3274, 4823, 6548, 9646, 11459, 19292, 21281, 22918, 42562, 45836, 85124, 86761, 148967, 173522, 297934, 347044, 595868, 607327, 1127893, 1214654, 2255786, 2429308, 4511572, 7895251, 15790502, 31581004]

約数ペア:

[(1, 31581004), (2, 15790502), (4, 7895251), (7, 4511572), (13, 2429308), (14, 2255786), (26, 1214654), (28, 1127893), (52, 607327), (53, 595868), (91, 347044), (106, 297934), (182, 173522), (212, 148967), (364, 86761), (371, 85124), (689, 45836), (742, 42562), (1378, 22918), (1484, 21281), (1637, 19292), (2756, 11459), (3274, 9646), (4823, 6548)]