221448819

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{631}}^1$

素因数の和:831

約数の個数: 32

約数和(自身を含む): 320348160

約数和(自身を除く): 98899341

約数列:

[1, 3, 19, 47, 57, 131, 141, 393, 631, 893, 1893, 2489, 2679, 6157, 7467, 11989, 18471, 29657, 35967, 82661, 88971, 116983, 247983, 350949, 563483, 1570559, 1690449, 3885067, 4711677, 11655201, 73816273, 221448819]

約数ペア:

[(1, 221448819), (3, 73816273), (19, 11655201), (47, 4711677), (57, 3885067), (131, 1690449), (141, 1570559), (393, 563483), (631, 350949), (893, 247983), (1893, 116983), (2489, 88971), (2679, 82661), (6157, 35967), (7467, 29657), (11989, 18471)]