21998424

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{3539}}^1$

素因数の和:3592

約数の個数: 64

約数和(自身を含む): 64569600

約数和(自身を除く): 42571176

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 37, 42, 56, 74, 84, 111, 148, 168, 222, 259, 296, 444, 518, 777, 888, 1036, 1554, 2072, 3108, 3539, 6216, 7078, 10617, 14156, 21234, 24773, 28312, 42468, 49546, 74319, 84936, 99092, 130943, 148638, 198184, 261886, 297276, 392829, 523772, 594552, 785658, 916601, 1047544, 1571316, 1833202, 2749803, 3142632, 3666404, 5499606, 7332808, 10999212, 21998424]

約数ペア:

[(1, 21998424), (2, 10999212), (3, 7332808), (4, 5499606), (6, 3666404), (7, 3142632), (8, 2749803), (12, 1833202), (14, 1571316), (21, 1047544), (24, 916601), (28, 785658), (37, 594552), (42, 523772), (56, 392829), (74, 297276), (84, 261886), (111, 198184), (148, 148638), (168, 130943), (222, 99092), (259, 84936), (296, 74319), (444, 49546), (518, 42468), (777, 28312), (888, 24773), (1036, 21234), (1554, 14156), (2072, 10617), (3108, 7078), (3539, 6216)]