18953584

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{311}}^1$

素因数の和:625

約数の個数: 40

約数和(自身を含む): 39809952

約数和(自身を除く): 20856368

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 293, 311, 586, 622, 1172, 1244, 2344, 2488, 3809, 4043, 4688, 4976, 7618, 8086, 15236, 16172, 30472, 32344, 60944, 64688, 91123, 182246, 364492, 728984, 1184599, 1457968, 2369198, 4738396, 9476792, 18953584]

約数ペア:

[(1, 18953584), (2, 9476792), (4, 4738396), (8, 2369198), (13, 1457968), (16, 1184599), (26, 728984), (52, 364492), (104, 182246), (208, 91123), (293, 64688), (311, 60944), (586, 32344), (622, 30472), (1172, 16172), (1244, 15236), (2344, 8086), (2488, 7618), (3809, 4976), (4043, 4688)]