18719877

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{631}}^1$

素因数の和:705

約数の個数: 32

約数和(自身を含む): 29122560

約数和(自身を除く): 10402683

約数列:

[1, 3, 11, 29, 31, 33, 87, 93, 319, 341, 631, 899, 957, 1023, 1893, 2697, 6941, 9889, 18299, 19561, 20823, 29667, 54897, 58683, 201289, 215171, 567269, 603867, 645513, 1701807, 6239959, 18719877]

約数ペア:

[(1, 18719877), (3, 6239959), (11, 1701807), (29, 645513), (31, 603867), (33, 567269), (87, 215171), (93, 201289), (319, 58683), (341, 54897), (631, 29667), (899, 20823), (957, 19561), (1023, 18299), (1893, 9889), (2697, 6941)]