17721378

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1997}}^1$

素因数の和:2051

約数の個数: 48

約数和(自身を含む): 42077880

約数和(自身を除く): 24356502

約数列:

[1, 2, 3, 6, 9, 17, 18, 29, 34, 51, 58, 87, 102, 153, 174, 261, 306, 493, 522, 986, 1479, 1997, 2958, 3994, 4437, 5991, 8874, 11982, 17973, 33949, 35946, 57913, 67898, 101847, 115826, 173739, 203694, 305541, 347478, 521217, 611082, 984521, 1042434, 1969042, 2953563, 5907126, 8860689, 17721378]

約数ペア:

[(1, 17721378), (2, 8860689), (3, 5907126), (6, 2953563), (9, 1969042), (17, 1042434), (18, 984521), (29, 611082), (34, 521217), (51, 347478), (58, 305541), (87, 203694), (102, 173739), (153, 115826), (174, 101847), (261, 67898), (306, 57913), (493, 35946), (522, 33949), (986, 17973), (1479, 11982), (1997, 8874), (2958, 5991), (3994, 4437)]