21282926

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:177

約数の個数: 64

約数和(自身を含む): 41472000

約数和(自身を除く): 20189074

約数列:

[1, 2, 7, 14, 19, 29, 31, 38, 58, 62, 89, 133, 178, 203, 217, 266, 406, 434, 551, 589, 623, 899, 1102, 1178, 1246, 1691, 1798, 2581, 2759, 3382, 3857, 4123, 5162, 5518, 6293, 7714, 8246, 11837, 12586, 17081, 18067, 19313, 23674, 34162, 36134, 38626, 49039, 52421, 80011, 98078, 104842, 119567, 160022, 239134, 343273, 366947, 560077, 686546, 733894, 1120154, 1520209, 3040418, 10641463, 21282926]

約数ペア:

[(1, 21282926), (2, 10641463), (7, 3040418), (14, 1520209), (19, 1120154), (29, 733894), (31, 686546), (38, 560077), (58, 366947), (62, 343273), (89, 239134), (133, 160022), (178, 119567), (203, 104842), (217, 98078), (266, 80011), (406, 52421), (434, 49039), (551, 38626), (589, 36134), (623, 34162), (899, 23674), (1102, 19313), (1178, 18067), (1246, 17081), (1691, 12586), (1798, 11837), (2581, 8246), (2759, 7714), (3382, 6293), (3857, 5518), (4123, 5162)]