19681815

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1303}}^1$

素因数の和:1383

約数の個数: 32

約数和(自身を含む): 33799680

約数和(自身を除く): 14117865

約数列:

[1, 3, 5, 15, 19, 53, 57, 95, 159, 265, 285, 795, 1007, 1303, 3021, 3909, 5035, 6515, 15105, 19545, 24757, 69059, 74271, 123785, 207177, 345295, 371355, 1035885, 1312121, 3936363, 6560605, 19681815]

約数ペア:

[(1, 19681815), (3, 6560605), (5, 3936363), (15, 1312121), (19, 1035885), (53, 371355), (57, 345295), (95, 207177), (159, 123785), (265, 74271), (285, 69059), (795, 24757), (1007, 19545), (1303, 15105), (3021, 6515), (3909, 5035)]