21331185

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{383}}^1$

素因数の和:517

約数の個数: 32

約数和(自身を含む): 35389440

約数和(自身を除く): 14058255

約数列:

[1, 3, 5, 15, 47, 79, 141, 235, 237, 383, 395, 705, 1149, 1185, 1915, 3713, 5745, 11139, 18001, 18565, 30257, 54003, 55695, 90005, 90771, 151285, 270015, 453855, 1422079, 4266237, 7110395, 21331185]

約数ペア:

[(1, 21331185), (3, 7110395), (5, 4266237), (15, 1422079), (47, 453855), (79, 270015), (141, 151285), (235, 90771), (237, 90005), (383, 55695), (395, 54003), (705, 30257), (1149, 18565), (1185, 18001), (1915, 11139), (3713, 5745)]