19832505

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{223}}^1$

素因数の和:267

約数の個数: 72

約数和(自身を含む): 40755456

約数和(自身を除く): 20922951

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 49, 55, 77, 105, 121, 147, 165, 223, 231, 245, 363, 385, 539, 605, 669, 735, 847, 1115, 1155, 1561, 1617, 1815, 2453, 2541, 2695, 3345, 4235, 4683, 5929, 7359, 7805, 8085, 10927, 12265, 12705, 17171, 17787, 23415, 26983, 29645, 32781, 36795, 51513, 54635, 80949, 85855, 88935, 120197, 134915, 163905, 188881, 257565, 360591, 404745, 566643, 600985, 944405, 1322167, 1802955, 2833215, 3966501, 6610835, 19832505]

約数ペア:

[(1, 19832505), (3, 6610835), (5, 3966501), (7, 2833215), (11, 1802955), (15, 1322167), (21, 944405), (33, 600985), (35, 566643), (49, 404745), (55, 360591), (77, 257565), (105, 188881), (121, 163905), (147, 134915), (165, 120197), (223, 88935), (231, 85855), (245, 80949), (363, 54635), (385, 51513), (539, 36795), (605, 32781), (669, 29645), (735, 26983), (847, 23415), (1115, 17787), (1155, 17171), (1561, 12705), (1617, 12265), (1815, 10927), (2453, 8085), (2541, 7805), (2695, 7359), (3345, 5929), (4235, 4683)]