21469215

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{1427}}^1$

素因数の和:1511

約数の個数: 32

約数和(自身を含む): 37013760

約数和(自身を除く): 15544545

約数列:

[1, 3, 5, 15, 17, 51, 59, 85, 177, 255, 295, 885, 1003, 1427, 3009, 4281, 5015, 7135, 15045, 21405, 24259, 72777, 84193, 121295, 252579, 363885, 420965, 1262895, 1431281, 4293843, 7156405, 21469215]

約数ペア:

[(1, 21469215), (3, 7156405), (5, 4293843), (15, 1431281), (17, 1262895), (51, 420965), (59, 363885), (85, 252579), (177, 121295), (255, 84193), (295, 72777), (885, 24259), (1003, 21405), (1427, 15045), (3009, 7135), (4281, 5015)]