209969415

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{22541}}^1$

素因数の和:22581

約数の個数: 40

約数和(自身を含む): 392771808

約数和(自身を除く): 182802393

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 81, 115, 135, 207, 345, 405, 621, 1035, 1863, 3105, 9315, 22541, 67623, 112705, 202869, 338115, 518443, 608607, 1014345, 1555329, 1825821, 2592215, 3043035, 4665987, 7776645, 9129105, 13997961, 23329935, 41993883, 69989805, 209969415]

約数ペア:

[(1, 209969415), (3, 69989805), (5, 41993883), (9, 23329935), (15, 13997961), (23, 9129105), (27, 7776645), (45, 4665987), (69, 3043035), (81, 2592215), (115, 1825821), (135, 1555329), (207, 1014345), (345, 608607), (405, 518443), (621, 338115), (1035, 202869), (1863, 112705), (3105, 67623), (9315, 22541)]