197971917

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{541}}^1\times {\mathrm{853}}^1$

素因数の和:1421

約数の個数: 32

約数和(自身を含む): 311047296

約数和(自身を除く): 113075379

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 541, 853, 1623, 2559, 5951, 7033, 9383, 11089, 17853, 21099, 28149, 33267, 77363, 121979, 232089, 365937, 461473, 1384419, 5076203, 5999149, 15228609, 17997447, 65990639, 197971917]

約数ペア:

[(1, 197971917), (3, 65990639), (11, 17997447), (13, 15228609), (33, 5999149), (39, 5076203), (143, 1384419), (429, 461473), (541, 365937), (853, 232089), (1623, 121979), (2559, 77363), (5951, 33267), (7033, 28149), (9383, 21099), (11089, 17853)]