21712068

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2971}}^1$

素因数の和:3017

約数の個数: 72

約数和(自身を含む): 64908480

約数和(自身を除く): 43196412

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 29, 36, 42, 58, 63, 84, 87, 116, 126, 174, 203, 252, 261, 348, 406, 522, 609, 812, 1044, 1218, 1827, 2436, 2971, 3654, 5942, 7308, 8913, 11884, 17826, 20797, 26739, 35652, 41594, 53478, 62391, 83188, 86159, 106956, 124782, 172318, 187173, 249564, 258477, 344636, 374346, 516954, 603113, 748692, 775431, 1033908, 1206226, 1550862, 1809339, 2412452, 3101724, 3618678, 5428017, 7237356, 10856034, 21712068]

約数ペア:

[(1, 21712068), (2, 10856034), (3, 7237356), (4, 5428017), (6, 3618678), (7, 3101724), (9, 2412452), (12, 1809339), (14, 1550862), (18, 1206226), (21, 1033908), (28, 775431), (29, 748692), (36, 603113), (42, 516954), (58, 374346), (63, 344636), (84, 258477), (87, 249564), (116, 187173), (126, 172318), (174, 124782), (203, 106956), (252, 86159), (261, 83188), (348, 62391), (406, 53478), (522, 41594), (609, 35652), (812, 26739), (1044, 20797), (1218, 17826), (1827, 11884), (2436, 8913), (2971, 7308), (3654, 5942)]