20304837

素因数分解:

$3^6\times 7^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1$

素因数の和:221

約数の個数: 56

約数和(自身を含む): 36514944

約数和(自身を除く): 16210107

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 81, 161, 173, 189, 207, 243, 483, 519, 567, 621, 729, 1211, 1449, 1557, 1701, 1863, 3633, 3979, 4347, 4671, 5103, 5589, 10899, 11937, 13041, 14013, 16767, 27853, 32697, 35811, 39123, 42039, 83559, 98091, 107433, 117369, 126117, 250677, 294273, 322299, 752031, 882819, 966897, 2256093, 2900691, 6768279, 20304837]

約数ペア:

[(1, 20304837), (3, 6768279), (7, 2900691), (9, 2256093), (21, 966897), (23, 882819), (27, 752031), (63, 322299), (69, 294273), (81, 250677), (161, 126117), (173, 117369), (189, 107433), (207, 98091), (243, 83559), (483, 42039), (519, 39123), (567, 35811), (621, 32697), (729, 27853), (1211, 16767), (1449, 14013), (1557, 13041), (1701, 11937), (1863, 10899), (3633, 5589), (3979, 5103), (4347, 4671)]