638444541

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{15647}}^1$

素因数の和:15753

約数の個数: 32

約数和(自身を含む): 1021501440

約数和(自身を除く): 383056899

約数列:

[1, 3, 7, 21, 29, 67, 87, 201, 203, 469, 609, 1407, 1943, 5829, 13601, 15647, 40803, 46941, 109529, 328587, 453763, 1048349, 1361289, 3145047, 3176341, 7338443, 9529023, 22015329, 30402121, 91206363, 212814847, 638444541]

約数ペア:

[(1, 638444541), (3, 212814847), (7, 91206363), (21, 30402121), (29, 22015329), (67, 9529023), (87, 7338443), (201, 3176341), (203, 3145047), (469, 1361289), (609, 1048349), (1407, 453763), (1943, 328587), (5829, 109529), (13601, 46941), (15647, 40803)]