18656190

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{9871}}^1$

素因数の和:9894

約数の個数: 64

約数和(自身を含む): 56862720

約数和(自身を除く): 38206530

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 9871, 19742, 29613, 49355, 59226, 69097, 88839, 98710, 138194, 148065, 177678, 207291, 266517, 296130, 345485, 414582, 444195, 533034, 621873, 690970, 888390, 1036455, 1243746, 1332585, 1865619, 2072910, 2665170, 3109365, 3731238, 6218730, 9328095, 18656190]

約数ペア:

[(1, 18656190), (2, 9328095), (3, 6218730), (5, 3731238), (6, 3109365), (7, 2665170), (9, 2072910), (10, 1865619), (14, 1332585), (15, 1243746), (18, 1036455), (21, 888390), (27, 690970), (30, 621873), (35, 533034), (42, 444195), (45, 414582), (54, 345485), (63, 296130), (70, 266517), (90, 207291), (105, 177678), (126, 148065), (135, 138194), (189, 98710), (210, 88839), (270, 69097), (315, 59226), (378, 49355), (630, 29613), (945, 19742), (1890, 9871)]