27688941

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{197}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 48432384

約数和(自身を除く): 20743443

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 97, 161, 197, 207, 291, 483, 591, 679, 873, 1379, 1449, 1773, 2037, 2231, 4137, 4531, 6111, 6693, 12411, 13593, 15617, 19109, 20079, 31717, 40779, 46851, 57327, 95151, 133763, 140553, 171981, 285453, 401289, 439507, 1203867, 1318521, 3076549, 3955563, 9229647, 27688941]

約数ペア:

[(1, 27688941), (3, 9229647), (7, 3955563), (9, 3076549), (21, 1318521), (23, 1203867), (63, 439507), (69, 401289), (97, 285453), (161, 171981), (197, 140553), (207, 133763), (291, 95151), (483, 57327), (591, 46851), (679, 40779), (873, 31717), (1379, 20079), (1449, 19109), (1773, 15617), (2037, 13593), (2231, 12411), (4137, 6693), (4531, 6111)]