21275114

素因数分解:

$2^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:243

約数の個数: 48

約数和(自身を含む): 39398400

約数和(自身を除く): 18123286

約数列:

[1, 2, 7, 14, 31, 47, 49, 62, 94, 98, 149, 217, 298, 329, 434, 658, 1043, 1457, 1519, 2086, 2303, 2914, 3038, 4606, 4619, 7003, 7301, 9238, 10199, 14006, 14602, 20398, 32333, 49021, 64666, 71393, 98042, 142786, 217093, 226331, 343147, 434186, 452662, 686294, 1519651, 3039302, 10637557, 21275114]

約数ペア:

[(1, 21275114), (2, 10637557), (7, 3039302), (14, 1519651), (31, 686294), (47, 452662), (49, 434186), (62, 343147), (94, 226331), (98, 217093), (149, 142786), (217, 98042), (298, 71393), (329, 64666), (434, 49021), (658, 32333), (1043, 20398), (1457, 14602), (1519, 14006), (2086, 10199), (2303, 9238), (2914, 7301), (3038, 7003), (4606, 4619)]