20653668

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1999}}^1$

素因数の和:2057

約数の個数: 72

約数和(自身を含む): 61152000

約数和(自身を除く): 40498332

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 41, 42, 63, 82, 84, 123, 126, 164, 246, 252, 287, 369, 492, 574, 738, 861, 1148, 1476, 1722, 1999, 2583, 3444, 3998, 5166, 5997, 7996, 10332, 11994, 13993, 17991, 23988, 27986, 35982, 41979, 55972, 71964, 81959, 83958, 125937, 163918, 167916, 245877, 251874, 327836, 491754, 503748, 573713, 737631, 983508, 1147426, 1475262, 1721139, 2294852, 2950524, 3442278, 5163417, 6884556, 10326834, 20653668]

約数ペア:

[(1, 20653668), (2, 10326834), (3, 6884556), (4, 5163417), (6, 3442278), (7, 2950524), (9, 2294852), (12, 1721139), (14, 1475262), (18, 1147426), (21, 983508), (28, 737631), (36, 573713), (41, 503748), (42, 491754), (63, 327836), (82, 251874), (84, 245877), (123, 167916), (126, 163918), (164, 125937), (246, 83958), (252, 81959), (287, 71964), (369, 55972), (492, 41979), (574, 35982), (738, 27986), (861, 23988), (1148, 17991), (1476, 13993), (1722, 11994), (1999, 10332), (2583, 7996), (3444, 5997), (3998, 5166)]