21683025

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{353}}^1$

素因数の和:392

約数の個数: 96

約数和(自身を含む): 49163520

約数和(自身を除く): 27480495

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 25, 27, 35, 39, 45, 63, 65, 75, 91, 105, 117, 135, 175, 189, 195, 225, 273, 315, 325, 351, 353, 455, 525, 585, 675, 819, 945, 975, 1059, 1365, 1575, 1755, 1765, 2275, 2457, 2471, 2925, 3177, 4095, 4589, 4725, 5295, 6825, 7413, 8775, 8825, 9531, 12285, 12355, 13767, 15885, 20475, 22239, 22945, 26475, 32123, 37065, 41301, 47655, 61425, 61775, 66717, 68835, 79425, 96369, 111195, 114725, 123903, 160615, 185325, 206505, 238275, 289107, 333585, 344175, 481845, 555975, 619515, 803075, 867321, 1032525, 1445535, 1667925, 2409225, 3097575, 4336605, 7227675, 21683025]

約数ペア:

[(1, 21683025), (3, 7227675), (5, 4336605), (7, 3097575), (9, 2409225), (13, 1667925), (15, 1445535), (21, 1032525), (25, 867321), (27, 803075), (35, 619515), (39, 555975), (45, 481845), (63, 344175), (65, 333585), (75, 289107), (91, 238275), (105, 206505), (117, 185325), (135, 160615), (175, 123903), (189, 114725), (195, 111195), (225, 96369), (273, 79425), (315, 68835), (325, 66717), (351, 61775), (353, 61425), (455, 47655), (525, 41301), (585, 37065), (675, 32123), (819, 26475), (945, 22945), (975, 22239), (1059, 20475), (1365, 15885), (1575, 13767), (1755, 12355), (1765, 12285), (2275, 9531), (2457, 8825), (2471, 8775), (2925, 7413), (3177, 6825), (4095, 5295), (4589, 4725)]