64778847

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{907}}^1$

素因数の和:1115

約数の個数: 32

約数和(自身を含む): 104601600

約数和(自身を除く): 39822753

約数列:

[1, 3, 7, 19, 21, 57, 133, 179, 399, 537, 907, 1253, 2721, 3401, 3759, 6349, 10203, 17233, 19047, 23807, 51699, 71421, 120631, 162353, 361893, 487059, 1136471, 3084707, 3409413, 9254121, 21592949, 64778847]

約数ペア:

[(1, 64778847), (3, 21592949), (7, 9254121), (19, 3409413), (21, 3084707), (57, 1136471), (133, 487059), (179, 361893), (399, 162353), (537, 120631), (907, 71421), (1253, 51699), (2721, 23807), (3401, 19047), (3759, 17233), (6349, 10203)]