21158379518

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{1999}}^1\times {\mathrm{4721}}^1$

素因数の和:6800

約数の個数: 32

約数和(自身を含む): 33998400000

約数和(自身を除く): 12840020482

約数列:

[1, 2, 19, 38, 59, 118, 1121, 1999, 2242, 3998, 4721, 9442, 37981, 75962, 89699, 117941, 179398, 235882, 278539, 557078, 2240879, 4481758, 5292241, 9437279, 10584482, 18874558, 179308301, 358616602, 556799461, 1113598922, 10579189759, 21158379518]

約数ペア:

[(1, 21158379518), (2, 10579189759), (19, 1113598922), (38, 556799461), (59, 358616602), (118, 179308301), (1121, 18874558), (1999, 10584482), (2242, 9437279), (3998, 5292241), (4721, 4481758), (9442, 2240879), (37981, 557078), (75962, 278539), (89699, 235882), (117941, 179398)]