21081704

素因数分解:

$2^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{7103}}^1$

素因数の和:7169

約数の個数: 32

約数和(自身を含む): 46033920

約数和(自身を除く): 24952216

約数列:

[1, 2, 4, 7, 8, 14, 28, 53, 56, 106, 212, 371, 424, 742, 1484, 2968, 7103, 14206, 28412, 49721, 56824, 99442, 198884, 376459, 397768, 752918, 1505836, 2635213, 3011672, 5270426, 10540852, 21081704]

約数ペア:

[(1, 21081704), (2, 10540852), (4, 5270426), (7, 3011672), (8, 2635213), (14, 1505836), (28, 752918), (53, 397768), (56, 376459), (106, 198884), (212, 99442), (371, 56824), (424, 49721), (742, 28412), (1484, 14206), (2968, 7103)]