19389136

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{97}}^1$

素因数の和:180

約数の個数: 60

約数和(自身を含む): 42234276

約数和(自身を除く): 22845140

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 97, 104, 124, 194, 208, 248, 388, 403, 496, 776, 806, 961, 1261, 1552, 1612, 1922, 2522, 3007, 3224, 3844, 5044, 6014, 6448, 7688, 10088, 12028, 12493, 15376, 20176, 24056, 24986, 39091, 48112, 49972, 78182, 93217, 99944, 156364, 186434, 199888, 312728, 372868, 625456, 745736, 1211821, 1491472, 2423642, 4847284, 9694568, 19389136]

約数ペア:

[(1, 19389136), (2, 9694568), (4, 4847284), (8, 2423642), (13, 1491472), (16, 1211821), (26, 745736), (31, 625456), (52, 372868), (62, 312728), (97, 199888), (104, 186434), (124, 156364), (194, 99944), (208, 93217), (248, 78182), (388, 49972), (403, 48112), (496, 39091), (776, 24986), (806, 24056), (961, 20176), (1261, 15376), (1552, 12493), (1612, 12028), (1922, 10088), (2522, 7688), (3007, 6448), (3224, 6014), (3844, 5044)]