21904722

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{167}}^1\times {\mathrm{347}}^1$

素因数の和:532

約数の個数: 64

約数和(自身を含む): 56125440

約数和(自身を除く): 34220718

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 167, 189, 334, 347, 378, 501, 694, 1002, 1041, 1169, 1503, 2082, 2338, 2429, 3006, 3123, 3507, 4509, 4858, 6246, 7014, 7287, 9018, 9369, 10521, 14574, 18738, 21042, 21861, 31563, 43722, 57949, 63126, 65583, 115898, 131166, 173847, 347694, 405643, 521541, 811286, 1043082, 1216929, 1564623, 2433858, 3129246, 3650787, 7301574, 10952361, 21904722]

約数ペア:

[(1, 21904722), (2, 10952361), (3, 7301574), (6, 3650787), (7, 3129246), (9, 2433858), (14, 1564623), (18, 1216929), (21, 1043082), (27, 811286), (42, 521541), (54, 405643), (63, 347694), (126, 173847), (167, 131166), (189, 115898), (334, 65583), (347, 63126), (378, 57949), (501, 43722), (694, 31563), (1002, 21861), (1041, 21042), (1169, 18738), (1503, 14574), (2082, 10521), (2338, 9369), (2429, 9018), (3006, 7287), (3123, 7014), (3507, 6246), (4509, 4858)]