221473185

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{2749}}^1$

素因数の和:2929

約数の個数: 32

約数和(自身を含む): 365904000

約数和(自身を除く): 144430815

約数列:

[1, 3, 5, 15, 41, 123, 131, 205, 393, 615, 655, 1965, 2749, 5371, 8247, 13745, 16113, 26855, 41235, 80565, 112709, 338127, 360119, 563545, 1080357, 1690635, 1800595, 5401785, 14764879, 44294637, 73824395, 221473185]

約数ペア:

[(1, 221473185), (3, 73824395), (5, 44294637), (15, 14764879), (41, 5401785), (123, 1800595), (131, 1690635), (205, 1080357), (393, 563545), (615, 360119), (655, 338127), (1965, 112709), (2749, 80565), (5371, 41235), (8247, 26855), (13745, 16113)]