15998703

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{397}}^1$

素因数の和:527

約数の個数: 32

約数和(自身を含む): 25981440

約数和(自身を除く): 9982737

約数列:

[1, 3, 7, 19, 21, 57, 101, 133, 303, 397, 399, 707, 1191, 1919, 2121, 2779, 5757, 7543, 8337, 13433, 22629, 40097, 40299, 52801, 120291, 158403, 280679, 761843, 842037, 2285529, 5332901, 15998703]

約数ペア:

[(1, 15998703), (3, 5332901), (7, 2285529), (19, 842037), (21, 761843), (57, 280679), (101, 158403), (133, 120291), (303, 52801), (397, 40299), (399, 40097), (707, 22629), (1191, 13433), (1919, 8337), (2121, 7543), (2779, 5757)]