15620985

素因数分解:

$3^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{461}}^1$

素因数の和:726

約数の個数: 32

約数和(自身を含む): 27941760

約数和(自身を除く): 12320775

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 251, 461, 753, 1255, 1383, 2259, 2305, 3765, 4149, 6777, 6915, 11295, 12447, 20745, 33885, 62235, 115711, 347133, 578555, 1041399, 1735665, 3124197, 5206995, 15620985]

約数ペア:

[(1, 15620985), (3, 5206995), (5, 3124197), (9, 1735665), (15, 1041399), (27, 578555), (45, 347133), (135, 115711), (251, 62235), (461, 33885), (753, 20745), (1255, 12447), (1383, 11295), (2259, 6915), (2305, 6777), (3765, 4149)]