21167808

素因数分解:

$2^6\times 3^1\times {\mathrm{41}}^1\times {\mathrm{2689}}^1$

素因数の和:2745

約数の個数: 56

約数和(自身を含む): 57393840

約数和(自身を除く): 36226032

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 41, 48, 64, 82, 96, 123, 164, 192, 246, 328, 492, 656, 984, 1312, 1968, 2624, 2689, 3936, 5378, 7872, 8067, 10756, 16134, 21512, 32268, 43024, 64536, 86048, 110249, 129072, 172096, 220498, 258144, 330747, 440996, 516288, 661494, 881992, 1322988, 1763984, 2645976, 3527968, 5291952, 7055936, 10583904, 21167808]

約数ペア:

[(1, 21167808), (2, 10583904), (3, 7055936), (4, 5291952), (6, 3527968), (8, 2645976), (12, 1763984), (16, 1322988), (24, 881992), (32, 661494), (41, 516288), (48, 440996), (64, 330747), (82, 258144), (96, 220498), (123, 172096), (164, 129072), (192, 110249), (246, 86048), (328, 64536), (492, 43024), (656, 32268), (984, 21512), (1312, 16134), (1968, 10756), (2624, 8067), (2689, 7872), (3936, 5378)]