20116746

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{389}}^1$

素因数の和:440

約数の個数: 72

約数和(自身を含む): 50101740

約数和(自身を除く): 29984994

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 102, 117, 153, 169, 221, 234, 306, 338, 389, 442, 507, 663, 778, 1014, 1167, 1326, 1521, 1989, 2334, 2873, 3042, 3501, 3978, 5057, 5746, 6613, 7002, 8619, 10114, 13226, 15171, 17238, 19839, 25857, 30342, 39678, 45513, 51714, 59517, 65741, 85969, 91026, 119034, 131482, 171938, 197223, 257907, 394446, 515814, 591669, 773721, 1117597, 1183338, 1547442, 2235194, 3352791, 6705582, 10058373, 20116746]

約数ペア:

[(1, 20116746), (2, 10058373), (3, 6705582), (6, 3352791), (9, 2235194), (13, 1547442), (17, 1183338), (18, 1117597), (26, 773721), (34, 591669), (39, 515814), (51, 394446), (78, 257907), (102, 197223), (117, 171938), (153, 131482), (169, 119034), (221, 91026), (234, 85969), (306, 65741), (338, 59517), (389, 51714), (442, 45513), (507, 39678), (663, 30342), (778, 25857), (1014, 19839), (1167, 17238), (1326, 15171), (1521, 13226), (1989, 10114), (2334, 8619), (2873, 7002), (3042, 6613), (3501, 5746), (3978, 5057)]