18275972

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{359}}^1$

素因数の和:476

約数の個数: 48

約数和(自身を含む): 38102400

約数和(自身を除く): 19826428

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 89, 143, 178, 286, 356, 359, 572, 718, 979, 1157, 1436, 1958, 2314, 3916, 3949, 4628, 4667, 7898, 9334, 12727, 15796, 18668, 25454, 31951, 50908, 51337, 63902, 102674, 127804, 205348, 351461, 415363, 702922, 830726, 1405844, 1661452, 4568993, 9137986, 18275972]

約数ペア:

[(1, 18275972), (2, 9137986), (4, 4568993), (11, 1661452), (13, 1405844), (22, 830726), (26, 702922), (44, 415363), (52, 351461), (89, 205348), (143, 127804), (178, 102674), (286, 63902), (356, 51337), (359, 50908), (572, 31951), (718, 25454), (979, 18668), (1157, 15796), (1436, 12727), (1958, 9334), (2314, 7898), (3916, 4667), (3949, 4628)]