209212995

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{2713}}^1$

素因数の和:2871

約数の個数: 32

約数和(自身を含む): 344699712

約数和(自身を除く): 135486717

約数列:

[1, 3, 5, 15, 53, 97, 159, 265, 291, 485, 795, 1455, 2713, 5141, 8139, 13565, 15423, 25705, 40695, 77115, 143789, 263161, 431367, 718945, 789483, 1315805, 2156835, 3947415, 13947533, 41842599, 69737665, 209212995]

約数ペア:

[(1, 209212995), (3, 69737665), (5, 41842599), (15, 13947533), (53, 3947415), (97, 2156835), (159, 1315805), (265, 789483), (291, 718945), (485, 431367), (795, 263161), (1455, 143789), (2713, 77115), (5141, 40695), (8139, 25705), (13565, 15423)]