21118488

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{271}}^1$

素因数の和:488

約数の個数: 64

約数和(自身を含む): 56401920

約数和(自身を除く): 35283432

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 191, 204, 271, 382, 408, 542, 573, 764, 813, 1084, 1146, 1528, 1626, 2168, 2292, 3247, 3252, 4584, 4607, 6494, 6504, 9214, 9741, 12988, 13821, 18428, 19482, 25976, 27642, 36856, 38964, 51761, 55284, 77928, 103522, 110568, 155283, 207044, 310566, 414088, 621132, 879937, 1242264, 1759874, 2639811, 3519748, 5279622, 7039496, 10559244, 21118488]

約数ペア:

[(1, 21118488), (2, 10559244), (3, 7039496), (4, 5279622), (6, 3519748), (8, 2639811), (12, 1759874), (17, 1242264), (24, 879937), (34, 621132), (51, 414088), (68, 310566), (102, 207044), (136, 155283), (191, 110568), (204, 103522), (271, 77928), (382, 55284), (408, 51761), (542, 38964), (573, 36856), (764, 27642), (813, 25976), (1084, 19482), (1146, 18428), (1528, 13821), (1626, 12988), (2168, 9741), (2292, 9214), (3247, 6504), (3252, 6494), (4584, 4607)]