19702998

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{89}}^1\times {\mathrm{251}}^1$

素因数の和:362

約数の個数: 72

約数和(自身を含む): 50417640

約数和(自身を除く): 30714642

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 89, 98, 126, 147, 178, 251, 267, 294, 441, 502, 534, 623, 753, 801, 882, 1246, 1506, 1602, 1757, 1869, 2259, 3514, 3738, 4361, 4518, 5271, 5607, 8722, 10542, 11214, 12299, 13083, 15813, 22339, 24598, 26166, 31626, 36897, 39249, 44678, 67017, 73794, 78498, 110691, 134034, 156373, 201051, 221382, 312746, 402102, 469119, 938238, 1094611, 1407357, 2189222, 2814714, 3283833, 6567666, 9851499, 19702998]

約数ペア:

[(1, 19702998), (2, 9851499), (3, 6567666), (6, 3283833), (7, 2814714), (9, 2189222), (14, 1407357), (18, 1094611), (21, 938238), (42, 469119), (49, 402102), (63, 312746), (89, 221382), (98, 201051), (126, 156373), (147, 134034), (178, 110691), (251, 78498), (267, 73794), (294, 67017), (441, 44678), (502, 39249), (534, 36897), (623, 31626), (753, 26166), (801, 24598), (882, 22339), (1246, 15813), (1506, 13083), (1602, 12299), (1757, 11214), (1869, 10542), (2259, 8722), (3514, 5607), (3738, 5271), (4361, 4518)]