21013398

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2417}}^1$

素因数の和:2458

約数の個数: 64

約数和(自身を含む): 55710720

約数和(自身を除く): 34697322

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 23, 27, 42, 46, 54, 63, 69, 126, 138, 161, 189, 207, 322, 378, 414, 483, 621, 966, 1242, 1449, 2417, 2898, 4347, 4834, 7251, 8694, 14502, 16919, 21753, 33838, 43506, 50757, 55591, 65259, 101514, 111182, 130518, 152271, 166773, 304542, 333546, 389137, 456813, 500319, 778274, 913626, 1000638, 1167411, 1500957, 2334822, 3001914, 3502233, 7004466, 10506699, 21013398]

約数ペア:

[(1, 21013398), (2, 10506699), (3, 7004466), (6, 3502233), (7, 3001914), (9, 2334822), (14, 1500957), (18, 1167411), (21, 1000638), (23, 913626), (27, 778274), (42, 500319), (46, 456813), (54, 389137), (63, 333546), (69, 304542), (126, 166773), (138, 152271), (161, 130518), (189, 111182), (207, 101514), (322, 65259), (378, 55591), (414, 50757), (483, 43506), (621, 33838), (966, 21753), (1242, 16919), (1449, 14502), (2417, 8694), (2898, 7251), (4347, 4834)]