21636790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1$

素因数の和:277

約数の個数: 64

約数和(自身を含む): 47278080

約数和(自身を除く): 25641290

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 89, 115, 151, 161, 178, 230, 302, 322, 445, 623, 755, 805, 890, 1057, 1246, 1510, 1610, 2047, 2114, 3115, 3473, 4094, 5285, 6230, 6946, 10235, 10570, 13439, 14329, 17365, 20470, 24311, 26878, 28658, 34730, 48622, 67195, 71645, 94073, 121555, 134390, 143290, 188146, 243110, 309097, 470365, 618194, 940730, 1545485, 2163679, 3090970, 4327358, 10818395, 21636790]

約数ペア:

[(1, 21636790), (2, 10818395), (5, 4327358), (7, 3090970), (10, 2163679), (14, 1545485), (23, 940730), (35, 618194), (46, 470365), (70, 309097), (89, 243110), (115, 188146), (151, 143290), (161, 134390), (178, 121555), (230, 94073), (302, 71645), (322, 67195), (445, 48622), (623, 34730), (755, 28658), (805, 26878), (890, 24311), (1057, 20470), (1246, 17365), (1510, 14329), (1610, 13439), (2047, 10570), (2114, 10235), (3115, 6946), (3473, 6230), (4094, 5285)]