18389696

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2$

素因数の和:110

約数の個数: 84

約数和(自身を含む): 42373296

約数和(自身を除く): 23983600

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 31, 32, 46, 52, 62, 64, 92, 104, 124, 184, 208, 248, 299, 368, 403, 416, 496, 598, 713, 736, 806, 832, 961, 992, 1196, 1426, 1472, 1612, 1922, 1984, 2392, 2852, 3224, 3844, 4784, 5704, 6448, 7688, 9269, 9568, 11408, 12493, 12896, 15376, 18538, 19136, 22103, 22816, 24986, 25792, 30752, 37076, 44206, 45632, 49972, 61504, 74152, 88412, 99944, 148304, 176824, 199888, 287339, 296608, 353648, 399776, 574678, 593216, 707296, 799552, 1149356, 1414592, 2298712, 4597424, 9194848, 18389696]

約数ペア:

[(1, 18389696), (2, 9194848), (4, 4597424), (8, 2298712), (13, 1414592), (16, 1149356), (23, 799552), (26, 707296), (31, 593216), (32, 574678), (46, 399776), (52, 353648), (62, 296608), (64, 287339), (92, 199888), (104, 176824), (124, 148304), (184, 99944), (208, 88412), (248, 74152), (299, 61504), (368, 49972), (403, 45632), (416, 44206), (496, 37076), (598, 30752), (713, 25792), (736, 24986), (806, 22816), (832, 22103), (961, 19136), (992, 18538), (1196, 15376), (1426, 12896), (1472, 12493), (1612, 11408), (1922, 9568), (1984, 9269), (2392, 7688), (2852, 6448), (3224, 5704), (3844, 4784)]