20921052

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1031}}^1$

素因数の和:1146

約数の個数: 48

約数和(自身を含む): 52012800

約数和(自身を除く): 31091748

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 89, 114, 178, 228, 267, 356, 534, 1031, 1068, 1691, 2062, 3093, 3382, 4124, 5073, 6186, 6764, 10146, 12372, 19589, 20292, 39178, 58767, 78356, 91759, 117534, 183518, 235068, 275277, 367036, 550554, 1101108, 1743421, 3486842, 5230263, 6973684, 10460526, 20921052]

約数ペア:

[(1, 20921052), (2, 10460526), (3, 6973684), (4, 5230263), (6, 3486842), (12, 1743421), (19, 1101108), (38, 550554), (57, 367036), (76, 275277), (89, 235068), (114, 183518), (178, 117534), (228, 91759), (267, 78356), (356, 58767), (534, 39178), (1031, 20292), (1068, 19589), (1691, 12372), (2062, 10146), (3093, 6764), (3382, 6186), (4124, 5073)]