21891100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2843}}^1$

素因数の和:2875

約数の個数: 72

約数和(自身を含む): 59246208

約数和(自身を除く): 37355108

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 110, 140, 154, 175, 220, 275, 308, 350, 385, 550, 700, 770, 1100, 1540, 1925, 2843, 3850, 5686, 7700, 11372, 14215, 19901, 28430, 31273, 39802, 56860, 62546, 71075, 79604, 99505, 125092, 142150, 156365, 199010, 218911, 284300, 312730, 398020, 437822, 497525, 625460, 781825, 875644, 995050, 1094555, 1563650, 1990100, 2189110, 3127300, 4378220, 5472775, 10945550, 21891100]

約数ペア:

[(1, 21891100), (2, 10945550), (4, 5472775), (5, 4378220), (7, 3127300), (10, 2189110), (11, 1990100), (14, 1563650), (20, 1094555), (22, 995050), (25, 875644), (28, 781825), (35, 625460), (44, 497525), (50, 437822), (55, 398020), (70, 312730), (77, 284300), (100, 218911), (110, 199010), (140, 156365), (154, 142150), (175, 125092), (220, 99505), (275, 79604), (308, 71075), (350, 62546), (385, 56860), (550, 39802), (700, 31273), (770, 28430), (1100, 19901), (1540, 14215), (1925, 11372), (2843, 7700), (3850, 5686)]