31609863

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 50918400

約数和(自身を除く): 19308537

約数列:

[1, 3, 9, 19, 31, 57, 67, 89, 93, 171, 201, 267, 279, 589, 603, 801, 1273, 1691, 1767, 2077, 2759, 3819, 5073, 5301, 5963, 6231, 8277, 11457, 15219, 17889, 18693, 24831, 39463, 52421, 53667, 113297, 118389, 157263, 184853, 339891, 355167, 471789, 554559, 1019673, 1663677, 3512207, 10536621, 31609863]

約数ペア:

[(1, 31609863), (3, 10536621), (9, 3512207), (19, 1663677), (31, 1019673), (57, 554559), (67, 471789), (89, 355167), (93, 339891), (171, 184853), (201, 157263), (267, 118389), (279, 113297), (589, 53667), (603, 52421), (801, 39463), (1273, 24831), (1691, 18693), (1767, 17889), (2077, 15219), (2759, 11457), (3819, 8277), (5073, 6231), (5301, 5963)]