20686484

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3343}}^1$

素因数の和:3384

約数の個数: 48

約数和(自身を含む): 47190528

約数和(自身を除く): 26504044

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 52, 68, 91, 119, 182, 221, 238, 364, 442, 476, 884, 1547, 3094, 3343, 6188, 6686, 13372, 23401, 43459, 46802, 56831, 86918, 93604, 113662, 173836, 227324, 304213, 397817, 608426, 738803, 795634, 1216852, 1477606, 1591268, 2955212, 5171621, 10343242, 20686484]

約数ペア:

[(1, 20686484), (2, 10343242), (4, 5171621), (7, 2955212), (13, 1591268), (14, 1477606), (17, 1216852), (26, 795634), (28, 738803), (34, 608426), (52, 397817), (68, 304213), (91, 227324), (119, 173836), (182, 113662), (221, 93604), (238, 86918), (364, 56831), (442, 46802), (476, 43459), (884, 23401), (1547, 13372), (3094, 6686), (3343, 6188)]