18122307

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:168

約数の個数: 48

約数和(自身を含む): 29855232

約数和(自身を除く): 11732925

約数列:

[1, 3, 7, 21, 43, 47, 49, 61, 129, 141, 147, 183, 301, 329, 427, 903, 987, 1281, 2021, 2107, 2303, 2623, 2867, 2989, 6063, 6321, 6909, 7869, 8601, 8967, 14147, 18361, 20069, 42441, 55083, 60207, 99029, 123281, 128527, 140483, 297087, 369843, 385581, 421449, 862967, 2588901, 6040769, 18122307]

約数ペア:

[(1, 18122307), (3, 6040769), (7, 2588901), (21, 862967), (43, 421449), (47, 385581), (49, 369843), (61, 297087), (129, 140483), (141, 128527), (147, 123281), (183, 99029), (301, 60207), (329, 55083), (427, 42441), (903, 20069), (987, 18361), (1281, 14147), (2021, 8967), (2107, 8601), (2303, 7869), (2623, 6909), (2867, 6321), (2989, 6063)]