21051282

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{53}}^1\times {\mathrm{193}}^1$

素因数の和:272

約数の個数: 64

約数和(自身を含む): 50284800

約数和(自身を除く): 29233518

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 53, 98, 106, 147, 159, 193, 294, 318, 343, 371, 386, 579, 686, 742, 1029, 1113, 1158, 1351, 2058, 2226, 2597, 2702, 4053, 5194, 7791, 8106, 9457, 10229, 15582, 18179, 18914, 20458, 28371, 30687, 36358, 54537, 56742, 61374, 66199, 71603, 109074, 132398, 143206, 198597, 214809, 397194, 429618, 501221, 1002442, 1503663, 3007326, 3508547, 7017094, 10525641, 21051282]

約数ペア:

[(1, 21051282), (2, 10525641), (3, 7017094), (6, 3508547), (7, 3007326), (14, 1503663), (21, 1002442), (42, 501221), (49, 429618), (53, 397194), (98, 214809), (106, 198597), (147, 143206), (159, 132398), (193, 109074), (294, 71603), (318, 66199), (343, 61374), (371, 56742), (386, 54537), (579, 36358), (686, 30687), (742, 28371), (1029, 20458), (1113, 18914), (1158, 18179), (1351, 15582), (2058, 10229), (2226, 9457), (2597, 8106), (2702, 7791), (4053, 5194)]