19903395

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1861}}^1$

素因数の和:1923

約数の個数: 32

約数和(自身を含む): 34320384

約数和(自身を除く): 14416989

約数列:

[1, 3, 5, 15, 23, 31, 69, 93, 115, 155, 345, 465, 713, 1861, 2139, 3565, 5583, 9305, 10695, 27915, 42803, 57691, 128409, 173073, 214015, 288455, 642045, 865365, 1326893, 3980679, 6634465, 19903395]

約数ペア:

[(1, 19903395), (3, 6634465), (5, 3980679), (15, 1326893), (23, 865365), (31, 642045), (69, 288455), (93, 214015), (115, 173073), (155, 128409), (345, 57691), (465, 42803), (713, 27915), (1861, 10695), (2139, 9305), (3565, 5583)]