201819813

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{251}}^1\times {\mathrm{389}}^1$

素因数の和:709

約数の個数: 32

約数和(自身を含む): 297198720

約数和(自身を除く): 95378907

約数列:

[1, 3, 13, 39, 53, 159, 251, 389, 689, 753, 1167, 2067, 3263, 5057, 9789, 13303, 15171, 20617, 39909, 61851, 97639, 172939, 268021, 292917, 518817, 804063, 1269307, 3807921, 5174867, 15524601, 67273271, 201819813]

約数ペア:

[(1, 201819813), (3, 67273271), (13, 15524601), (39, 5174867), (53, 3807921), (159, 1269307), (251, 804063), (389, 518817), (689, 292917), (753, 268021), (1167, 172939), (2067, 97639), (3263, 61851), (5057, 39909), (9789, 20617), (13303, 15171)]