17791995

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3967}}^1$

素因数の和:4011

約数の個数: 32

約数和(自身を含む): 31997952

約数和(自身を除く): 14205957

約数列:

[1, 3, 5, 13, 15, 23, 39, 65, 69, 115, 195, 299, 345, 897, 1495, 3967, 4485, 11901, 19835, 51571, 59505, 91241, 154713, 257855, 273723, 456205, 773565, 1186133, 1368615, 3558399, 5930665, 17791995]

約数ペア:

[(1, 17791995), (3, 5930665), (5, 3558399), (13, 1368615), (15, 1186133), (23, 773565), (39, 456205), (65, 273723), (69, 257855), (115, 154713), (195, 91241), (299, 59505), (345, 51571), (897, 19835), (1495, 11901), (3967, 4485)]