20981502

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{68567}}^1$

素因数の和:68592

約数の個数: 24

約数和(自身を含む): 48134736

約数和(自身を除く): 27153234

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 306, 68567, 137134, 205701, 411402, 617103, 1165639, 1234206, 2331278, 3496917, 6993834, 10490751, 20981502]

約数ペア:

[(1, 20981502), (2, 10490751), (3, 6993834), (6, 3496917), (9, 2331278), (17, 1234206), (18, 1165639), (34, 617103), (51, 411402), (102, 205701), (153, 137134), (306, 68567)]