20654898

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{449}}^1$

素因数の和:523

約数の個数: 64

約数和(自身を含む): 48988800

約数和(自身を除く): 28333902

約数列:

[1, 2, 3, 6, 11, 17, 22, 33, 34, 41, 51, 66, 82, 102, 123, 187, 246, 374, 449, 451, 561, 697, 898, 902, 1122, 1347, 1353, 1394, 2091, 2694, 2706, 4182, 4939, 7633, 7667, 9878, 14817, 15266, 15334, 18409, 22899, 23001, 29634, 36818, 45798, 46002, 55227, 83963, 110454, 167926, 202499, 251889, 312953, 404998, 503778, 607497, 625906, 938859, 1214994, 1877718, 3442483, 6884966, 10327449, 20654898]

約数ペア:

[(1, 20654898), (2, 10327449), (3, 6884966), (6, 3442483), (11, 1877718), (17, 1214994), (22, 938859), (33, 625906), (34, 607497), (41, 503778), (51, 404998), (66, 312953), (82, 251889), (102, 202499), (123, 167926), (187, 110454), (246, 83963), (374, 55227), (449, 46002), (451, 45798), (561, 36818), (697, 29634), (898, 23001), (902, 22899), (1122, 18409), (1347, 15334), (1353, 15266), (1394, 14817), (2091, 9878), (2694, 7667), (2706, 7633), (4182, 4939)]