21720084

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^2\times {\mathrm{6263}}^1$

素因数の和:6304

約数の個数: 36

約数和(自身を含む): 53845344

約数和(自身を除く): 32125260

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 204, 289, 578, 867, 1156, 1734, 3468, 6263, 12526, 18789, 25052, 37578, 75156, 106471, 212942, 319413, 425884, 638826, 1277652, 1810007, 3620014, 5430021, 7240028, 10860042, 21720084]

約数ペア:

[(1, 21720084), (2, 10860042), (3, 7240028), (4, 5430021), (6, 3620014), (12, 1810007), (17, 1277652), (34, 638826), (51, 425884), (68, 319413), (102, 212942), (204, 106471), (289, 75156), (578, 37578), (867, 25052), (1156, 18789), (1734, 12526), (3468, 6263)]