21459354

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{1553}}^1$

素因数の和:1619

約数の個数: 48

約数和(自身を含む): 51020928

約数和(自身を除く): 29561574

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 47, 49, 94, 98, 141, 147, 282, 294, 329, 658, 987, 1553, 1974, 2303, 3106, 4606, 4659, 6909, 9318, 10871, 13818, 21742, 32613, 65226, 72991, 76097, 145982, 152194, 218973, 228291, 437946, 456582, 510937, 1021874, 1532811, 3065622, 3576559, 7153118, 10729677, 21459354]

約数ペア:

[(1, 21459354), (2, 10729677), (3, 7153118), (6, 3576559), (7, 3065622), (14, 1532811), (21, 1021874), (42, 510937), (47, 456582), (49, 437946), (94, 228291), (98, 218973), (141, 152194), (147, 145982), (282, 76097), (294, 72991), (329, 65226), (658, 32613), (987, 21742), (1553, 13818), (1974, 10871), (2303, 9318), (3106, 6909), (4606, 4659)]