21656922

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{3877}}^1$

素因数の和:3915

約数の個数: 48

約数和(自身を含む): 53051040

約数和(自身を除く): 31394118

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 49, 57, 98, 114, 133, 147, 266, 294, 399, 798, 931, 1862, 2793, 3877, 5586, 7754, 11631, 23262, 27139, 54278, 73663, 81417, 147326, 162834, 189973, 220989, 379946, 441978, 515641, 569919, 1031282, 1139838, 1546923, 3093846, 3609487, 7218974, 10828461, 21656922]

約数ペア:

[(1, 21656922), (2, 10828461), (3, 7218974), (6, 3609487), (7, 3093846), (14, 1546923), (19, 1139838), (21, 1031282), (38, 569919), (42, 515641), (49, 441978), (57, 379946), (98, 220989), (114, 189973), (133, 162834), (147, 147326), (266, 81417), (294, 73663), (399, 54278), (798, 27139), (931, 23262), (1862, 11631), (2793, 7754), (3877, 5586)]