21465969

素因数分解:

$3^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{907}}^1$

素因数の和:954

約数の個数: 32

約数和(自身を含む): 34867200

約数和(自身を除く): 13401231

約数列:

[1, 3, 7, 21, 23, 49, 69, 147, 161, 343, 483, 907, 1029, 1127, 2721, 3381, 6349, 7889, 19047, 20861, 23667, 44443, 62583, 133329, 146027, 311101, 438081, 933303, 1022189, 3066567, 7155323, 21465969]

約数ペア:

[(1, 21465969), (3, 7155323), (7, 3066567), (21, 1022189), (23, 933303), (49, 438081), (69, 311101), (147, 146027), (161, 133329), (343, 62583), (483, 44443), (907, 23667), (1029, 20861), (1127, 19047), (2721, 7889), (3381, 6349)]