21274990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{367}}^1$

素因数の和:433

約数の個数: 64

約数和(自身を含む): 45785088

約数和(自身を除く): 24510098

約数列:

[1, 2, 5, 10, 11, 17, 22, 31, 34, 55, 62, 85, 110, 155, 170, 187, 310, 341, 367, 374, 527, 682, 734, 935, 1054, 1705, 1835, 1870, 2635, 3410, 3670, 4037, 5270, 5797, 6239, 8074, 11377, 11594, 12478, 20185, 22754, 28985, 31195, 40370, 56885, 57970, 62390, 68629, 113770, 125147, 137258, 193409, 250294, 343145, 386818, 625735, 686290, 967045, 1251470, 1934090, 2127499, 4254998, 10637495, 21274990]

約数ペア:

[(1, 21274990), (2, 10637495), (5, 4254998), (10, 2127499), (11, 1934090), (17, 1251470), (22, 967045), (31, 686290), (34, 625735), (55, 386818), (62, 343145), (85, 250294), (110, 193409), (155, 137258), (170, 125147), (187, 113770), (310, 68629), (341, 62390), (367, 57970), (374, 56885), (527, 40370), (682, 31195), (734, 28985), (935, 22754), (1054, 20185), (1705, 12478), (1835, 11594), (1870, 11377), (2635, 8074), (3410, 6239), (3670, 5797), (4037, 5270)]