21511026

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{233}}^1$

素因数の和:487

約数の個数: 48

約数和(自身を含む): 49061376

約数和(自身を除く): 27550350

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 207, 223, 233, 414, 446, 466, 669, 699, 1338, 1398, 2007, 2097, 4014, 4194, 5129, 5359, 10258, 10718, 15387, 16077, 30774, 32154, 46161, 48231, 51959, 92322, 96462, 103918, 155877, 311754, 467631, 935262, 1195057, 2390114, 3585171, 7170342, 10755513, 21511026]

約数ペア:

[(1, 21511026), (2, 10755513), (3, 7170342), (6, 3585171), (9, 2390114), (18, 1195057), (23, 935262), (46, 467631), (69, 311754), (138, 155877), (207, 103918), (223, 96462), (233, 92322), (414, 51959), (446, 48231), (466, 46161), (669, 32154), (699, 30774), (1338, 16077), (1398, 15387), (2007, 10718), (2097, 10258), (4014, 5359), (4194, 5129)]