20497974

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{617}}^1$

素因数の和:749

約数の個数: 48

約数和(自身を含む): 48189168

約数和(自身を除く): 27691194

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 113, 147, 226, 294, 339, 617, 678, 791, 1234, 1582, 1851, 2373, 3702, 4319, 4746, 5537, 8638, 11074, 12957, 16611, 25914, 30233, 33222, 60466, 69721, 90699, 139442, 181398, 209163, 418326, 488047, 976094, 1464141, 2928282, 3416329, 6832658, 10248987, 20497974]

約数ペア:

[(1, 20497974), (2, 10248987), (3, 6832658), (6, 3416329), (7, 2928282), (14, 1464141), (21, 976094), (42, 488047), (49, 418326), (98, 209163), (113, 181398), (147, 139442), (226, 90699), (294, 69721), (339, 60466), (617, 33222), (678, 30233), (791, 25914), (1234, 16611), (1582, 12957), (1851, 11074), (2373, 8638), (3702, 5537), (4319, 4746)]