21180384

素因数分解:

$2^5\times 3^2\times {\mathrm{251}}^1\times {\mathrm{293}}^1$

素因数の和:560

約数の個数: 72

約数和(自身を含む): 60678072

約数和(自身を除く): 39497688

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 251, 288, 293, 502, 586, 753, 879, 1004, 1172, 1506, 1758, 2008, 2259, 2344, 2637, 3012, 3516, 4016, 4518, 4688, 5274, 6024, 7032, 8032, 9036, 9376, 10548, 12048, 14064, 18072, 21096, 24096, 28128, 36144, 42192, 72288, 73543, 84384, 147086, 220629, 294172, 441258, 588344, 661887, 882516, 1176688, 1323774, 1765032, 2353376, 2647548, 3530064, 5295096, 7060128, 10590192, 21180384]

約数ペア:

[(1, 21180384), (2, 10590192), (3, 7060128), (4, 5295096), (6, 3530064), (8, 2647548), (9, 2353376), (12, 1765032), (16, 1323774), (18, 1176688), (24, 882516), (32, 661887), (36, 588344), (48, 441258), (72, 294172), (96, 220629), (144, 147086), (251, 84384), (288, 73543), (293, 72288), (502, 42192), (586, 36144), (753, 28128), (879, 24096), (1004, 21096), (1172, 18072), (1506, 14064), (1758, 12048), (2008, 10548), (2259, 9376), (2344, 9036), (2637, 8032), (3012, 7032), (3516, 6024), (4016, 5274), (4518, 4688)]