21610365

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1$

素因数の和:242

約数の個数: 64

約数和(自身を含む): 42024960

約数和(自身を除く): 20414595

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 47, 87, 105, 141, 145, 151, 203, 235, 329, 435, 453, 609, 705, 755, 987, 1015, 1057, 1363, 1645, 2265, 3045, 3171, 4089, 4379, 4935, 5285, 6815, 7097, 9541, 13137, 15855, 20445, 21291, 21895, 28623, 30653, 35485, 47705, 49679, 65685, 91959, 106455, 143115, 149037, 153265, 205813, 248395, 459795, 617439, 745185, 1029065, 1440691, 3087195, 4322073, 7203455, 21610365]

約数ペア:

[(1, 21610365), (3, 7203455), (5, 4322073), (7, 3087195), (15, 1440691), (21, 1029065), (29, 745185), (35, 617439), (47, 459795), (87, 248395), (105, 205813), (141, 153265), (145, 149037), (151, 143115), (203, 106455), (235, 91959), (329, 65685), (435, 49679), (453, 47705), (609, 35485), (705, 30653), (755, 28623), (987, 21895), (1015, 21291), (1057, 20445), (1363, 15855), (1645, 13137), (2265, 9541), (3045, 7097), (3171, 6815), (4089, 5285), (4379, 4935)]