20219793412

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1447}}^1\times {\mathrm{2953}}^1$

素因数の和:4437

約数の個数: 72

約数和(自身を含む): 43834713216

約数和(自身を除く): 23614919804

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 169, 182, 338, 364, 676, 1183, 1447, 2366, 2894, 2953, 4732, 5788, 5906, 10129, 11812, 18811, 20258, 20671, 37622, 38389, 40516, 41342, 75244, 76778, 82684, 131677, 153556, 244543, 263354, 268723, 489086, 499057, 526708, 537446, 978172, 998114, 1074892, 1711801, 1996228, 3423602, 3493399, 4272991, 6847204, 6986798, 8545982, 13973596, 17091964, 29910937, 55548883, 59821874, 111097766, 119643748, 222195532, 388842181, 722135479, 777684362, 1444270958, 1555368724, 2888541916, 5054948353, 10109896706, 20219793412]

約数ペア:

[(1, 20219793412), (2, 10109896706), (4, 5054948353), (7, 2888541916), (13, 1555368724), (14, 1444270958), (26, 777684362), (28, 722135479), (52, 388842181), (91, 222195532), (169, 119643748), (182, 111097766), (338, 59821874), (364, 55548883), (676, 29910937), (1183, 17091964), (1447, 13973596), (2366, 8545982), (2894, 6986798), (2953, 6847204), (4732, 4272991), (5788, 3493399), (5906, 3423602), (10129, 1996228), (11812, 1711801), (18811, 1074892), (20258, 998114), (20671, 978172), (37622, 537446), (38389, 526708), (40516, 499057), (41342, 489086), (75244, 268723), (76778, 263354), (82684, 244543), (131677, 153556)]