20782386

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{577}}^1$

素因数の和:640

約数の個数: 64

約数和(自身を含む): 49939200

約数和(自身を除く): 29156814

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 29, 46, 54, 58, 69, 87, 138, 174, 207, 261, 414, 522, 577, 621, 667, 783, 1154, 1242, 1334, 1566, 1731, 2001, 3462, 4002, 5193, 6003, 10386, 12006, 13271, 15579, 16733, 18009, 26542, 31158, 33466, 36018, 39813, 50199, 79626, 100398, 119439, 150597, 238878, 301194, 358317, 384859, 451791, 716634, 769718, 903582, 1154577, 2309154, 3463731, 6927462, 10391193, 20782386]

約数ペア:

[(1, 20782386), (2, 10391193), (3, 6927462), (6, 3463731), (9, 2309154), (18, 1154577), (23, 903582), (27, 769718), (29, 716634), (46, 451791), (54, 384859), (58, 358317), (69, 301194), (87, 238878), (138, 150597), (174, 119439), (207, 100398), (261, 79626), (414, 50199), (522, 39813), (577, 36018), (621, 33466), (667, 31158), (783, 26542), (1154, 18009), (1242, 16733), (1334, 15579), (1566, 13271), (1731, 12006), (2001, 10386), (3462, 6003), (4002, 5193)]