20484513

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{211}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 35982336

約数和(自身を除く): 15497823

約数列:

[1, 3, 7, 9, 21, 23, 63, 67, 69, 161, 201, 207, 211, 469, 483, 603, 633, 1407, 1449, 1477, 1541, 1899, 4221, 4431, 4623, 4853, 10787, 13293, 13869, 14137, 14559, 32361, 33971, 42411, 43677, 97083, 98959, 101913, 127233, 296877, 305739, 325151, 890631, 975453, 2276057, 2926359, 6828171, 20484513]

約数ペア:

[(1, 20484513), (3, 6828171), (7, 2926359), (9, 2276057), (21, 975453), (23, 890631), (63, 325151), (67, 305739), (69, 296877), (161, 127233), (201, 101913), (207, 98959), (211, 97083), (469, 43677), (483, 42411), (603, 33971), (633, 32361), (1407, 14559), (1449, 14137), (1477, 13869), (1541, 13293), (1899, 10787), (4221, 4853), (4431, 4623)]