21970506

素因数分解:

$2^1\times 3^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:187

約数の個数: 64

約数和(自身を含む): 48254976

約数和(自身を除く): 26284470

約数列:

[1, 2, 3, 6, 31, 41, 43, 62, 67, 82, 86, 93, 123, 129, 134, 186, 201, 246, 258, 402, 1271, 1333, 1763, 2077, 2542, 2666, 2747, 2881, 3526, 3813, 3999, 4154, 5289, 5494, 5762, 6231, 7626, 7998, 8241, 8643, 10578, 12462, 16482, 17286, 54653, 85157, 89311, 109306, 118121, 163959, 170314, 178622, 236242, 255471, 267933, 327918, 354363, 510942, 535866, 708726, 3661751, 7323502, 10985253, 21970506]

約数ペア:

[(1, 21970506), (2, 10985253), (3, 7323502), (6, 3661751), (31, 708726), (41, 535866), (43, 510942), (62, 354363), (67, 327918), (82, 267933), (86, 255471), (93, 236242), (123, 178622), (129, 170314), (134, 163959), (186, 118121), (201, 109306), (246, 89311), (258, 85157), (402, 54653), (1271, 17286), (1333, 16482), (1763, 12462), (2077, 10578), (2542, 8643), (2666, 8241), (2747, 7998), (2881, 7626), (3526, 6231), (3813, 5762), (3999, 5494), (4154, 5289)]