64920513

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{523}}^1$

素因数の和:813

約数の個数: 32

約数和(自身を含む): 103827456

約数和(自身を除く): 38906943

約数列:

[1, 3, 7, 21, 23, 69, 161, 257, 483, 523, 771, 1569, 1799, 3661, 5397, 5911, 10983, 12029, 17733, 36087, 41377, 84203, 124131, 134411, 252609, 403233, 940877, 2822631, 3091453, 9274359, 21640171, 64920513]

約数ペア:

[(1, 64920513), (3, 21640171), (7, 9274359), (21, 3091453), (23, 2822631), (69, 940877), (161, 403233), (257, 252609), (483, 134411), (523, 124131), (771, 84203), (1569, 41377), (1799, 36087), (3661, 17733), (5397, 12029), (5911, 10983)]