15843915

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 29484000

約数和(自身を除く): 13640085

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 139, 149, 153, 255, 417, 447, 695, 745, 765, 1251, 1341, 2085, 2235, 2363, 2533, 6255, 6705, 7089, 7599, 11815, 12665, 20711, 21267, 22797, 35445, 37995, 62133, 103555, 106335, 113985, 186399, 310665, 352087, 931995, 1056261, 1760435, 3168783, 5281305, 15843915]

約数ペア:

[(1, 15843915), (3, 5281305), (5, 3168783), (9, 1760435), (15, 1056261), (17, 931995), (45, 352087), (51, 310665), (85, 186399), (139, 113985), (149, 106335), (153, 103555), (255, 62133), (417, 37995), (447, 35445), (695, 22797), (745, 21267), (765, 20711), (1251, 12665), (1341, 11815), (2085, 7599), (2235, 7089), (2363, 6705), (2533, 6255)]