39557721

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{617}}^1$

素因数の和:741

約数の個数: 32

約数和(自身を含む): 62650368

約数和(自身を除く): 23092647

約数列:

[1, 3, 7, 21, 43, 71, 129, 213, 301, 497, 617, 903, 1491, 1851, 3053, 4319, 9159, 12957, 21371, 26531, 43807, 64113, 79593, 131421, 185717, 306649, 557151, 919947, 1883701, 5651103, 13185907, 39557721]

約数ペア:

[(1, 39557721), (3, 13185907), (7, 5651103), (21, 1883701), (43, 919947), (71, 557151), (129, 306649), (213, 185717), (301, 131421), (497, 79593), (617, 64113), (903, 43807), (1491, 26531), (1851, 21371), (3053, 12957), (4319, 9159)]