20346788

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2131}}^1$

素因数の和:2184

約数の個数: 48

約数和(自身を含む): 45846528

約数和(自身を除く): 25499740

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 44, 62, 77, 124, 154, 217, 308, 341, 434, 682, 868, 1364, 2131, 2387, 4262, 4774, 8524, 9548, 14917, 23441, 29834, 46882, 59668, 66061, 93764, 132122, 164087, 264244, 328174, 462427, 656348, 726671, 924854, 1453342, 1849708, 2906684, 5086697, 10173394, 20346788]

約数ペア:

[(1, 20346788), (2, 10173394), (4, 5086697), (7, 2906684), (11, 1849708), (14, 1453342), (22, 924854), (28, 726671), (31, 656348), (44, 462427), (62, 328174), (77, 264244), (124, 164087), (154, 132122), (217, 93764), (308, 66061), (341, 59668), (434, 46882), (682, 29834), (868, 23441), (1364, 14917), (2131, 9548), (2387, 8524), (4262, 4774)]