18440968

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{347}}^1$

素因数の和:446

約数の個数: 64

約数和(自身を含む): 43263360

約数和(自身を除く): 24822392

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 73, 91, 104, 146, 182, 292, 347, 364, 511, 584, 694, 728, 949, 1022, 1388, 1898, 2044, 2429, 2776, 3796, 4088, 4511, 4858, 6643, 7592, 9022, 9716, 13286, 18044, 19432, 25331, 26572, 31577, 36088, 50662, 53144, 63154, 101324, 126308, 177317, 202648, 252616, 329303, 354634, 658606, 709268, 1317212, 1418536, 2305121, 2634424, 4610242, 9220484, 18440968]

約数ペア:

[(1, 18440968), (2, 9220484), (4, 4610242), (7, 2634424), (8, 2305121), (13, 1418536), (14, 1317212), (26, 709268), (28, 658606), (52, 354634), (56, 329303), (73, 252616), (91, 202648), (104, 177317), (146, 126308), (182, 101324), (292, 63154), (347, 53144), (364, 50662), (511, 36088), (584, 31577), (694, 26572), (728, 25331), (949, 19432), (1022, 18044), (1388, 13286), (1898, 9716), (2044, 9022), (2429, 7592), (2776, 6643), (3796, 4858), (4088, 4511)]