18703885

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:201

約数の個数: 32

約数和(自身を含む): 24883200

約数和(自身を除く): 6179315

約数列:

[1, 5, 19, 47, 59, 71, 95, 235, 295, 355, 893, 1121, 1349, 2773, 3337, 4189, 4465, 5605, 6745, 13865, 16685, 20945, 52687, 63403, 79591, 196883, 263435, 317015, 397955, 984415, 3740777, 18703885]

約数ペア:

[(1, 18703885), (5, 3740777), (19, 984415), (47, 397955), (59, 317015), (71, 263435), (95, 196883), (235, 79591), (295, 63403), (355, 52687), (893, 20945), (1121, 16685), (1349, 13865), (2773, 6745), (3337, 5605), (4189, 4465)]