19036985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 26438400

約数和(自身を除く): 7401415

約数列:

[1, 5, 11, 23, 55, 101, 115, 149, 253, 505, 745, 1111, 1265, 1639, 2323, 3427, 5555, 8195, 11615, 15049, 17135, 25553, 37697, 75245, 127765, 165539, 188485, 346127, 827695, 1730635, 3807397, 19036985]

約数ペア:

[(1, 19036985), (5, 3807397), (11, 1730635), (23, 827695), (55, 346127), (101, 188485), (115, 165539), (149, 127765), (253, 75245), (505, 37697), (745, 25553), (1111, 17135), (1265, 15049), (1639, 11615), (2323, 8195), (3427, 5555)]