64681221

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{2749}}^1$

素因数の和:2817

約数の個数: 32

約数和(自身を含む): 101376000

約数和(自身を除く): 36694779

約数列:

[1, 3, 11, 23, 31, 33, 69, 93, 253, 341, 713, 759, 1023, 2139, 2749, 7843, 8247, 23529, 30239, 63227, 85219, 90717, 189681, 255657, 695497, 937409, 1960037, 2086491, 2812227, 5880111, 21560407, 64681221]

約数ペア:

[(1, 64681221), (3, 21560407), (11, 5880111), (23, 2812227), (31, 2086491), (33, 1960037), (69, 937409), (93, 695497), (253, 255657), (341, 189681), (713, 90717), (759, 85219), (1023, 63227), (2139, 30239), (2749, 23529), (7843, 8247)]