212970915

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{1381}}^1$

素因数の和:1564

約数の個数: 48

約数和(自身を含む): 388065600

約数和(自身を除く): 175094685

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 149, 207, 345, 447, 745, 1035, 1341, 1381, 2235, 3427, 4143, 6705, 6905, 10281, 12429, 17135, 20715, 30843, 31763, 51405, 62145, 95289, 154215, 158815, 205769, 285867, 476445, 617307, 1028845, 1429335, 1851921, 3086535, 4732687, 9259605, 14198061, 23663435, 42594183, 70990305, 212970915]

約数ペア:

[(1, 212970915), (3, 70990305), (5, 42594183), (9, 23663435), (15, 14198061), (23, 9259605), (45, 4732687), (69, 3086535), (115, 1851921), (149, 1429335), (207, 1028845), (345, 617307), (447, 476445), (745, 285867), (1035, 205769), (1341, 158815), (1381, 154215), (2235, 95289), (3427, 62145), (4143, 51405), (6705, 31763), (6905, 30843), (10281, 20715), (12429, 17135)]