21395646

素因数分解:

$2^1\times 3^2\times {\mathrm{67}}^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1$

素因数の和:345

約数の個数: 48

約数和(自身を含む): 47767824

約数和(自身を除く): 26372178

約数列:

[1, 2, 3, 6, 9, 18, 67, 113, 134, 157, 201, 226, 314, 339, 402, 471, 603, 678, 942, 1017, 1206, 1413, 2034, 2826, 7571, 10519, 15142, 17741, 21038, 22713, 31557, 35482, 45426, 53223, 63114, 68139, 94671, 106446, 136278, 159669, 189342, 319338, 1188647, 2377294, 3565941, 7131882, 10697823, 21395646]

約数ペア:

[(1, 21395646), (2, 10697823), (3, 7131882), (6, 3565941), (9, 2377294), (18, 1188647), (67, 319338), (113, 189342), (134, 159669), (157, 136278), (201, 106446), (226, 94671), (314, 68139), (339, 63114), (402, 53223), (471, 45426), (603, 35482), (678, 31557), (942, 22713), (1017, 21038), (1206, 17741), (1413, 15142), (2034, 10519), (2826, 7571)]