20808821913

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1\times {\mathrm{64601}}^1$

素因数の和:64885

約数の個数: 32

約数和(自身を含む): 31108188672

約数和(自身を除く): 10299366759

約数列:

[1, 3, 11, 33, 43, 129, 227, 473, 681, 1419, 2497, 7491, 9761, 29283, 64601, 107371, 193803, 322113, 710611, 2131833, 2777843, 8333529, 14664427, 30556273, 43993281, 91668819, 161308697, 483926091, 630570361, 1891711083, 6936273971, 20808821913]

約数ペア:

[(1, 20808821913), (3, 6936273971), (11, 1891711083), (33, 630570361), (43, 483926091), (129, 161308697), (227, 91668819), (473, 43993281), (681, 30556273), (1419, 14664427), (2497, 8333529), (7491, 2777843), (9761, 2131833), (29283, 710611), (64601, 322113), (107371, 193803)]