20689971399

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{1553}}^1\times {\mathrm{8089}}^1$

素因数の和:9712

約数の個数: 32

約数和(自身を含む): 31178212800

約数和(自身を除く): 10488241401

約数列:

[1, 3, 9, 27, 61, 183, 549, 1553, 1647, 4659, 8089, 13977, 24267, 41931, 72801, 94733, 218403, 284199, 493429, 852597, 1480287, 2557791, 4440861, 12562217, 13322583, 37686651, 113059953, 339179859, 766295237, 2298885711, 6896657133, 20689971399]

約数ペア:

[(1, 20689971399), (3, 6896657133), (9, 2298885711), (27, 766295237), (61, 339179859), (183, 113059953), (549, 37686651), (1553, 13322583), (1647, 12562217), (4659, 4440861), (8089, 2557791), (13977, 1480287), (24267, 852597), (41931, 493429), (72801, 284199), (94733, 218403)]