21575349

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{173}}^1$

素因数の和:362

約数の個数: 32

約数和(自身を含む): 33408000

約数和(自身を除く): 11832651

約数列:

[1, 3, 9, 27, 31, 93, 149, 173, 279, 447, 519, 837, 1341, 1557, 4023, 4619, 4671, 5363, 13857, 16089, 25777, 41571, 48267, 77331, 124713, 144801, 231993, 695979, 799087, 2397261, 7191783, 21575349]

約数ペア:

[(1, 21575349), (3, 7191783), (9, 2397261), (27, 799087), (31, 695979), (93, 231993), (149, 144801), (173, 124713), (279, 77331), (447, 48267), (519, 41571), (837, 25777), (1341, 16089), (1557, 13857), (4023, 5363), (4619, 4671)]