21225483

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:229

約数の個数: 40

約数和(自身を含む): 33454080

約数和(自身を除く): 12228597

約数列:

[1, 3, 9, 27, 31, 79, 81, 93, 107, 237, 279, 321, 711, 837, 963, 2133, 2449, 2511, 2889, 3317, 6399, 7347, 8453, 8667, 9951, 22041, 25359, 29853, 66123, 76077, 89559, 198369, 228231, 262043, 268677, 684693, 786129, 2358387, 7075161, 21225483]

約数ペア:

[(1, 21225483), (3, 7075161), (9, 2358387), (27, 786129), (31, 684693), (79, 268677), (81, 262043), (93, 228231), (107, 198369), (237, 89559), (279, 76077), (321, 66123), (711, 29853), (837, 25359), (963, 22041), (2133, 9951), (2449, 8667), (2511, 8453), (2889, 7347), (3317, 6399)]