19887392

素因数分解:

$2^5\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1889}}^1$

素因数の和:1953

約数の個数: 48

約数和(自身を含む): 45722880

約数和(自身を除く): 25835488

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 47, 56, 94, 112, 188, 224, 329, 376, 658, 752, 1316, 1504, 1889, 2632, 3778, 5264, 7556, 10528, 13223, 15112, 26446, 30224, 52892, 60448, 88783, 105784, 177566, 211568, 355132, 423136, 621481, 710264, 1242962, 1420528, 2485924, 2841056, 4971848, 9943696, 19887392]

約数ペア:

[(1, 19887392), (2, 9943696), (4, 4971848), (7, 2841056), (8, 2485924), (14, 1420528), (16, 1242962), (28, 710264), (32, 621481), (47, 423136), (56, 355132), (94, 211568), (112, 177566), (188, 105784), (224, 88783), (329, 60448), (376, 52892), (658, 30224), (752, 26446), (1316, 15112), (1504, 13223), (1889, 10528), (2632, 7556), (3778, 5264)]