21007668

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{2609}}^1$

素因数の和:2688

約数の個数: 48

約数和(自身を含む): 54371520

約数和(自身を除く): 33363852

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 61, 66, 122, 132, 183, 244, 366, 671, 732, 1342, 2013, 2609, 2684, 4026, 5218, 7827, 8052, 10436, 15654, 28699, 31308, 57398, 86097, 114796, 159149, 172194, 318298, 344388, 477447, 636596, 954894, 1750639, 1909788, 3501278, 5251917, 7002556, 10503834, 21007668]

約数ペア:

[(1, 21007668), (2, 10503834), (3, 7002556), (4, 5251917), (6, 3501278), (11, 1909788), (12, 1750639), (22, 954894), (33, 636596), (44, 477447), (61, 344388), (66, 318298), (122, 172194), (132, 159149), (183, 114796), (244, 86097), (366, 57398), (671, 31308), (732, 28699), (1342, 15654), (2013, 10436), (2609, 8052), (2684, 7827), (4026, 5218)]