421990863

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:324

約数の個数: 64

約数和(自身を含む): 687194112

約数和(自身を除く): 265203249

約数列:

[1, 3, 7, 21, 43, 47, 61, 129, 141, 163, 183, 301, 329, 427, 489, 903, 987, 1141, 1281, 2021, 2623, 2867, 3423, 6063, 7009, 7661, 7869, 8601, 9943, 14147, 18361, 20069, 21027, 22983, 29829, 42441, 49063, 53627, 55083, 60207, 69601, 123281, 147189, 160881, 208803, 329423, 369843, 427549, 467321, 862967, 988269, 1282647, 1401963, 2305961, 2588901, 2992843, 3271247, 6917883, 8978529, 9813741, 20094803, 60284409, 140663621, 421990863]

約数ペア:

[(1, 421990863), (3, 140663621), (7, 60284409), (21, 20094803), (43, 9813741), (47, 8978529), (61, 6917883), (129, 3271247), (141, 2992843), (163, 2588901), (183, 2305961), (301, 1401963), (329, 1282647), (427, 988269), (489, 862967), (903, 467321), (987, 427549), (1141, 369843), (1281, 329423), (2021, 208803), (2623, 160881), (2867, 147189), (3423, 123281), (6063, 69601), (7009, 60207), (7661, 55083), (7869, 53627), (8601, 49063), (9943, 42441), (14147, 29829), (18361, 22983), (20069, 21027)]