20197893

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:277

約数の個数: 32

約数和(自身を含む): 29779840

約数和(自身を除く): 9581947

約数列:

[1, 3, 19, 37, 57, 61, 111, 157, 183, 471, 703, 1159, 2109, 2257, 2983, 3477, 5809, 6771, 8949, 9577, 17427, 28731, 42883, 110371, 128649, 181963, 331113, 354349, 545889, 1063047, 6732631, 20197893]

約数ペア:

[(1, 20197893), (3, 6732631), (19, 1063047), (37, 545889), (57, 354349), (61, 331113), (111, 181963), (157, 128649), (183, 110371), (471, 42883), (703, 28731), (1159, 17427), (2109, 9577), (2257, 8949), (2983, 6771), (3477, 5809)]