18713968

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12853}}^1$

素因数の和:12881

約数の個数: 40

約数和(自身を含む): 44629088

約数和(自身を除く): 25915120

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 12853, 25706, 51412, 89971, 102824, 167089, 179942, 205648, 334178, 359884, 668356, 719768, 1169623, 1336712, 1439536, 2339246, 2673424, 4678492, 9356984, 18713968]

約数ペア:

[(1, 18713968), (2, 9356984), (4, 4678492), (7, 2673424), (8, 2339246), (13, 1439536), (14, 1336712), (16, 1169623), (26, 719768), (28, 668356), (52, 359884), (56, 334178), (91, 205648), (104, 179942), (112, 167089), (182, 102824), (208, 89971), (364, 51412), (728, 25706), (1456, 12853)]