21152950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4649}}^1$

素因数の和:4681

約数の個数: 48

約数和(自身を含む): 48434400

約数和(自身を除く): 27281450

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 130, 175, 182, 325, 350, 455, 650, 910, 2275, 4550, 4649, 9298, 23245, 32543, 46490, 60437, 65086, 116225, 120874, 162715, 232450, 302185, 325430, 423059, 604370, 813575, 846118, 1510925, 1627150, 2115295, 3021850, 4230590, 10576475, 21152950]

約数ペア:

[(1, 21152950), (2, 10576475), (5, 4230590), (7, 3021850), (10, 2115295), (13, 1627150), (14, 1510925), (25, 846118), (26, 813575), (35, 604370), (50, 423059), (65, 325430), (70, 302185), (91, 232450), (130, 162715), (175, 120874), (182, 116225), (325, 65086), (350, 60437), (455, 46490), (650, 32543), (910, 23245), (2275, 9298), (4550, 4649)]