21409812

素因数分解:

$2^2\times 3^3\times {\mathrm{137}}^1\times {\mathrm{1447}}^1$

素因数の和:1597

約数の個数: 48

約数和(自身を含む): 55950720

約数和(自身を除く): 34540908

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 137, 274, 411, 548, 822, 1233, 1447, 1644, 2466, 2894, 3699, 4341, 4932, 5788, 7398, 8682, 13023, 14796, 17364, 26046, 39069, 52092, 78138, 156276, 198239, 396478, 594717, 792956, 1189434, 1784151, 2378868, 3568302, 5352453, 7136604, 10704906, 21409812]

約数ペア:

[(1, 21409812), (2, 10704906), (3, 7136604), (4, 5352453), (6, 3568302), (9, 2378868), (12, 1784151), (18, 1189434), (27, 792956), (36, 594717), (54, 396478), (108, 198239), (137, 156276), (274, 78138), (411, 52092), (548, 39069), (822, 26046), (1233, 17364), (1447, 14796), (1644, 13023), (2466, 8682), (2894, 7398), (3699, 5788), (4341, 4932)]