51338538

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:252

約数の個数: 72

約数和(自身を含む): 120687840

約数和(自身を除く): 69349302

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 71, 102, 139, 142, 153, 213, 278, 289, 306, 417, 426, 578, 639, 834, 867, 1207, 1251, 1278, 1734, 2363, 2414, 2502, 2601, 3621, 4726, 5202, 7089, 7242, 9869, 10863, 14178, 19738, 20519, 21267, 21726, 29607, 40171, 41038, 42534, 59214, 61557, 80342, 88821, 120513, 123114, 167773, 177642, 184671, 241026, 335546, 361539, 369342, 503319, 723078, 1006638, 1509957, 2852141, 3019914, 5704282, 8556423, 17112846, 25669269, 51338538]

約数ペア:

[(1, 51338538), (2, 25669269), (3, 17112846), (6, 8556423), (9, 5704282), (17, 3019914), (18, 2852141), (34, 1509957), (51, 1006638), (71, 723078), (102, 503319), (139, 369342), (142, 361539), (153, 335546), (213, 241026), (278, 184671), (289, 177642), (306, 167773), (417, 123114), (426, 120513), (578, 88821), (639, 80342), (834, 61557), (867, 59214), (1207, 42534), (1251, 41038), (1278, 40171), (1734, 29607), (2363, 21726), (2414, 21267), (2502, 20519), (2601, 19738), (3621, 14178), (4726, 10863), (5202, 9869), (7089, 7242)]