21192676

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{349}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 42336000

約数和(自身を除く): 21143324

約数列:

[1, 2, 4, 17, 19, 34, 38, 47, 68, 76, 94, 188, 323, 349, 646, 698, 799, 893, 1292, 1396, 1598, 1786, 3196, 3572, 5933, 6631, 11866, 13262, 15181, 16403, 23732, 26524, 30362, 32806, 60724, 65612, 112727, 225454, 278851, 311657, 450908, 557702, 623314, 1115404, 1246628, 5298169, 10596338, 21192676]

約数ペア:

[(1, 21192676), (2, 10596338), (4, 5298169), (17, 1246628), (19, 1115404), (34, 623314), (38, 557702), (47, 450908), (68, 311657), (76, 278851), (94, 225454), (188, 112727), (323, 65612), (349, 60724), (646, 32806), (698, 30362), (799, 26524), (893, 23732), (1292, 16403), (1396, 15181), (1598, 13262), (1786, 11866), (3196, 6631), (3572, 5933)]