21523908

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:217

約数の個数: 96

約数和(自身を含む): 60318720

約数和(自身を除く): 38794812

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 43, 59, 84, 86, 101, 118, 129, 172, 177, 202, 236, 258, 301, 303, 354, 404, 413, 516, 602, 606, 707, 708, 826, 903, 1204, 1212, 1239, 1414, 1652, 1806, 2121, 2478, 2537, 2828, 3612, 4242, 4343, 4956, 5074, 5959, 7611, 8484, 8686, 10148, 11918, 13029, 15222, 17372, 17759, 17877, 23836, 26058, 30401, 30444, 35518, 35754, 41713, 52116, 53277, 60802, 71036, 71508, 83426, 91203, 106554, 121604, 125139, 166852, 182406, 213108, 250278, 256237, 364812, 500556, 512474, 768711, 1024948, 1537422, 1793659, 3074844, 3587318, 5380977, 7174636, 10761954, 21523908]

約数ペア:

[(1, 21523908), (2, 10761954), (3, 7174636), (4, 5380977), (6, 3587318), (7, 3074844), (12, 1793659), (14, 1537422), (21, 1024948), (28, 768711), (42, 512474), (43, 500556), (59, 364812), (84, 256237), (86, 250278), (101, 213108), (118, 182406), (129, 166852), (172, 125139), (177, 121604), (202, 106554), (236, 91203), (258, 83426), (301, 71508), (303, 71036), (354, 60802), (404, 53277), (413, 52116), (516, 41713), (602, 35754), (606, 35518), (707, 30444), (708, 30401), (826, 26058), (903, 23836), (1204, 17877), (1212, 17759), (1239, 17372), (1414, 15222), (1652, 13029), (1806, 11918), (2121, 10148), (2478, 8686), (2537, 8484), (2828, 7611), (3612, 5959), (4242, 5074), (4343, 4956)]