19780326

素因数分解:

$2^1\times 3^2\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{227}}^1$

素因数の和:385

約数の個数: 48

約数和(自身を含む): 44388864

約数和(自身を除く): 24608538

約数列:

[1, 2, 3, 6, 9, 18, 47, 94, 103, 141, 206, 227, 282, 309, 423, 454, 618, 681, 846, 927, 1362, 1854, 2043, 4086, 4841, 9682, 10669, 14523, 21338, 23381, 29046, 32007, 43569, 46762, 64014, 70143, 87138, 96021, 140286, 192042, 210429, 420858, 1098907, 2197814, 3296721, 6593442, 9890163, 19780326]

約数ペア:

[(1, 19780326), (2, 9890163), (3, 6593442), (6, 3296721), (9, 2197814), (18, 1098907), (47, 420858), (94, 210429), (103, 192042), (141, 140286), (206, 96021), (227, 87138), (282, 70143), (309, 64014), (423, 46762), (454, 43569), (618, 32007), (681, 29046), (846, 23381), (927, 21338), (1362, 14523), (1854, 10669), (2043, 9682), (4086, 4841)]