21382914

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{257}}^1\times {\mathrm{283}}^1$

素因数の和:559

約数の個数: 48

約数和(自身を含む): 50118048

約数和(自身を除く): 28735134

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 257, 283, 294, 514, 566, 771, 849, 1542, 1698, 1799, 1981, 3598, 3962, 5397, 5943, 10794, 11886, 12593, 13867, 25186, 27734, 37779, 41601, 72731, 75558, 83202, 145462, 218193, 436386, 509117, 1018234, 1527351, 3054702, 3563819, 7127638, 10691457, 21382914]

約数ペア:

[(1, 21382914), (2, 10691457), (3, 7127638), (6, 3563819), (7, 3054702), (14, 1527351), (21, 1018234), (42, 509117), (49, 436386), (98, 218193), (147, 145462), (257, 83202), (283, 75558), (294, 72731), (514, 41601), (566, 37779), (771, 27734), (849, 25186), (1542, 13867), (1698, 12593), (1799, 11886), (1981, 10794), (3598, 5943), (3962, 5397)]