20641950

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{6553}}^1$

素因数の和:6578

約数の個数: 72

約数和(自身を含む): 63390288

約数和(自身を除く): 42748338

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 50, 63, 70, 75, 90, 105, 126, 150, 175, 210, 225, 315, 350, 450, 525, 630, 1050, 1575, 3150, 6553, 13106, 19659, 32765, 39318, 45871, 58977, 65530, 91742, 98295, 117954, 137613, 163825, 196590, 229355, 275226, 294885, 327650, 412839, 458710, 491475, 589770, 688065, 825678, 982950, 1146775, 1376130, 1474425, 2064195, 2293550, 2948850, 3440325, 4128390, 6880650, 10320975, 20641950]

約数ペア:

[(1, 20641950), (2, 10320975), (3, 6880650), (5, 4128390), (6, 3440325), (7, 2948850), (9, 2293550), (10, 2064195), (14, 1474425), (15, 1376130), (18, 1146775), (21, 982950), (25, 825678), (30, 688065), (35, 589770), (42, 491475), (45, 458710), (50, 412839), (63, 327650), (70, 294885), (75, 275226), (90, 229355), (105, 196590), (126, 163825), (150, 137613), (175, 117954), (210, 98295), (225, 91742), (315, 65530), (350, 58977), (450, 45871), (525, 39318), (630, 32765), (1050, 19659), (1575, 13106), (3150, 6553)]