12921590

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{59}}^1\times {\mathrm{181}}^1$

素因数の和:269

約数の個数: 48

約数和(自身を含む): 26142480

約数和(自身を除く): 13220890

約数列:

[1, 2, 5, 10, 11, 22, 55, 59, 110, 118, 121, 181, 242, 295, 362, 590, 605, 649, 905, 1210, 1298, 1810, 1991, 3245, 3982, 6490, 7139, 9955, 10679, 14278, 19910, 21358, 21901, 35695, 43802, 53395, 71390, 106790, 109505, 117469, 219010, 234938, 587345, 1174690, 1292159, 2584318, 6460795, 12921590]

約数ペア:

[(1, 12921590), (2, 6460795), (5, 2584318), (10, 1292159), (11, 1174690), (22, 587345), (55, 234938), (59, 219010), (110, 117469), (118, 109505), (121, 106790), (181, 71390), (242, 53395), (295, 43802), (362, 35695), (590, 21901), (605, 21358), (649, 19910), (905, 14278), (1210, 10679), (1298, 9955), (1810, 7139), (1991, 6490), (3245, 3982)]