20421450

素因数分解:

$2^1\times 3^3\times 5^2\times 7^1\times {\mathrm{2161}}^1$

素因数の和:2189

約数の個数: 96

約数和(自身を含む): 64341120

約数和(自身を除く): 43919670

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 27, 30, 35, 42, 45, 50, 54, 63, 70, 75, 90, 105, 126, 135, 150, 175, 189, 210, 225, 270, 315, 350, 378, 450, 525, 630, 675, 945, 1050, 1350, 1575, 1890, 2161, 3150, 4322, 4725, 6483, 9450, 10805, 12966, 15127, 19449, 21610, 30254, 32415, 38898, 45381, 54025, 58347, 64830, 75635, 90762, 97245, 108050, 116694, 136143, 151270, 162075, 194490, 226905, 272286, 291735, 324150, 378175, 408429, 453810, 486225, 583470, 680715, 756350, 816858, 972450, 1134525, 1361430, 1458675, 2042145, 2269050, 2917350, 3403575, 4084290, 6807150, 10210725, 20421450]

約数ペア:

[(1, 20421450), (2, 10210725), (3, 6807150), (5, 4084290), (6, 3403575), (7, 2917350), (9, 2269050), (10, 2042145), (14, 1458675), (15, 1361430), (18, 1134525), (21, 972450), (25, 816858), (27, 756350), (30, 680715), (35, 583470), (42, 486225), (45, 453810), (50, 408429), (54, 378175), (63, 324150), (70, 291735), (75, 272286), (90, 226905), (105, 194490), (126, 162075), (135, 151270), (150, 136143), (175, 116694), (189, 108050), (210, 97245), (225, 90762), (270, 75635), (315, 64830), (350, 58347), (378, 54025), (450, 45381), (525, 38898), (630, 32415), (675, 30254), (945, 21610), (1050, 19449), (1350, 15127), (1575, 12966), (1890, 10805), (2161, 9450), (3150, 6483), (4322, 4725)]