21684852

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{647}}^1$

素因数の和:690

約数の個数: 108

約数和(自身を含む): 67223520

約数和(自身を除く): 45538668

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 28, 36, 38, 42, 49, 57, 63, 76, 84, 98, 114, 126, 133, 147, 171, 196, 228, 252, 266, 294, 342, 399, 441, 532, 588, 647, 684, 798, 882, 931, 1197, 1294, 1596, 1764, 1862, 1941, 2394, 2588, 2793, 3724, 3882, 4529, 4788, 5586, 5823, 7764, 8379, 9058, 11172, 11646, 12293, 13587, 16758, 18116, 23292, 24586, 27174, 31703, 33516, 36879, 40761, 49172, 54348, 63406, 73758, 81522, 86051, 95109, 110637, 126812, 147516, 163044, 172102, 190218, 221274, 258153, 285327, 344204, 380436, 442548, 516306, 570654, 602357, 774459, 1032612, 1141308, 1204714, 1548918, 1807071, 2409428, 3097836, 3614142, 5421213, 7228284, 10842426, 21684852]

約数ペア:

[(1, 21684852), (2, 10842426), (3, 7228284), (4, 5421213), (6, 3614142), (7, 3097836), (9, 2409428), (12, 1807071), (14, 1548918), (18, 1204714), (19, 1141308), (21, 1032612), (28, 774459), (36, 602357), (38, 570654), (42, 516306), (49, 442548), (57, 380436), (63, 344204), (76, 285327), (84, 258153), (98, 221274), (114, 190218), (126, 172102), (133, 163044), (147, 147516), (171, 126812), (196, 110637), (228, 95109), (252, 86051), (266, 81522), (294, 73758), (342, 63406), (399, 54348), (441, 49172), (532, 40761), (588, 36879), (647, 33516), (684, 31703), (798, 27174), (882, 24586), (931, 23292), (1197, 18116), (1294, 16758), (1596, 13587), (1764, 12293), (1862, 11646), (1941, 11172), (2394, 9058), (2588, 8379), (2793, 7764), (3724, 5823), (3882, 5586), (4529, 4788)]