18713628

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{233}}^1$

素因数の和:363

約数の個数: 72

約数和(自身を含む): 50083488

約数和(自身を除く): 31369860

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 97, 138, 194, 207, 233, 276, 291, 388, 414, 466, 582, 699, 828, 873, 932, 1164, 1398, 1746, 2097, 2231, 2796, 3492, 4194, 4462, 5359, 6693, 8388, 8924, 10718, 13386, 16077, 20079, 21436, 22601, 26772, 32154, 40158, 45202, 48231, 64308, 67803, 80316, 90404, 96462, 135606, 192924, 203409, 271212, 406818, 519823, 813636, 1039646, 1559469, 2079292, 3118938, 4678407, 6237876, 9356814, 18713628]

約数ペア:

[(1, 18713628), (2, 9356814), (3, 6237876), (4, 4678407), (6, 3118938), (9, 2079292), (12, 1559469), (18, 1039646), (23, 813636), (36, 519823), (46, 406818), (69, 271212), (92, 203409), (97, 192924), (138, 135606), (194, 96462), (207, 90404), (233, 80316), (276, 67803), (291, 64308), (388, 48231), (414, 45202), (466, 40158), (582, 32154), (699, 26772), (828, 22601), (873, 21436), (932, 20079), (1164, 16077), (1398, 13386), (1746, 10718), (2097, 8924), (2231, 8388), (2796, 6693), (3492, 5359), (4194, 4462)]