21839742

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{743}}^1$

素因数の和:845

約数の個数: 48

約数和(自身を含む): 50139648

約数和(自身を除く): 28299906

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 71, 138, 142, 207, 213, 414, 426, 639, 743, 1278, 1486, 1633, 2229, 3266, 4458, 4899, 6687, 9798, 13374, 14697, 17089, 29394, 34178, 51267, 52753, 102534, 105506, 153801, 158259, 307602, 316518, 474777, 949554, 1213319, 2426638, 3639957, 7279914, 10919871, 21839742]

約数ペア:

[(1, 21839742), (2, 10919871), (3, 7279914), (6, 3639957), (9, 2426638), (18, 1213319), (23, 949554), (46, 474777), (69, 316518), (71, 307602), (138, 158259), (142, 153801), (207, 105506), (213, 102534), (414, 52753), (426, 51267), (639, 34178), (743, 29394), (1278, 17089), (1486, 14697), (1633, 13374), (2229, 9798), (3266, 6687), (4458, 4899)]