21065688

素因数分解:

$2^3\times 3^2\times 7^3\times {\mathrm{853}}^1$

素因数の和:886

約数の個数: 96

約数和(自身を含む): 66612000

約数和(自身を除く): 45546312

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 49, 56, 63, 72, 84, 98, 126, 147, 168, 196, 252, 294, 343, 392, 441, 504, 588, 686, 853, 882, 1029, 1176, 1372, 1706, 1764, 2058, 2559, 2744, 3087, 3412, 3528, 4116, 5118, 5971, 6174, 6824, 7677, 8232, 10236, 11942, 12348, 15354, 17913, 20472, 23884, 24696, 30708, 35826, 41797, 47768, 53739, 61416, 71652, 83594, 107478, 125391, 143304, 167188, 214956, 250782, 292579, 334376, 376173, 429912, 501564, 585158, 752346, 877737, 1003128, 1170316, 1504692, 1755474, 2340632, 2633211, 3009384, 3510948, 5266422, 7021896, 10532844, 21065688]

約数ペア:

[(1, 21065688), (2, 10532844), (3, 7021896), (4, 5266422), (6, 3510948), (7, 3009384), (8, 2633211), (9, 2340632), (12, 1755474), (14, 1504692), (18, 1170316), (21, 1003128), (24, 877737), (28, 752346), (36, 585158), (42, 501564), (49, 429912), (56, 376173), (63, 334376), (72, 292579), (84, 250782), (98, 214956), (126, 167188), (147, 143304), (168, 125391), (196, 107478), (252, 83594), (294, 71652), (343, 61416), (392, 53739), (441, 47768), (504, 41797), (588, 35826), (686, 30708), (853, 24696), (882, 23884), (1029, 20472), (1176, 17913), (1372, 15354), (1706, 12348), (1764, 11942), (2058, 10236), (2559, 8232), (2744, 7677), (3087, 6824), (3412, 6174), (3528, 5971), (4116, 5118)]