18713448

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19993}}^1$

素因数の和:20018

約数の個数: 48

約数和(自身を含む): 54583620

約数和(自身を除く): 35870172

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 19993, 39986, 59979, 79972, 119958, 159944, 179937, 239916, 259909, 359874, 479832, 519818, 719748, 779727, 1039636, 1439496, 1559454, 2079272, 2339181, 3118908, 4678362, 6237816, 9356724, 18713448]

約数ペア:

[(1, 18713448), (2, 9356724), (3, 6237816), (4, 4678362), (6, 3118908), (8, 2339181), (9, 2079272), (12, 1559454), (13, 1439496), (18, 1039636), (24, 779727), (26, 719748), (36, 519818), (39, 479832), (52, 359874), (72, 259909), (78, 239916), (104, 179937), (117, 159944), (156, 119958), (234, 79972), (312, 59979), (468, 39986), (936, 19993)]