21581196

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19763}}^1$

素因数の和:19790

約数の個数: 48

約数和(自身を含む): 61979904

約数和(自身を除く): 40398708

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 156, 182, 273, 364, 546, 1092, 19763, 39526, 59289, 79052, 118578, 138341, 237156, 256919, 276682, 415023, 513838, 553364, 770757, 830046, 1027676, 1541514, 1660092, 1798433, 3083028, 3596866, 5395299, 7193732, 10790598, 21581196]

約数ペア:

[(1, 21581196), (2, 10790598), (3, 7193732), (4, 5395299), (6, 3596866), (7, 3083028), (12, 1798433), (13, 1660092), (14, 1541514), (21, 1027676), (26, 830046), (28, 770757), (39, 553364), (42, 513838), (52, 415023), (78, 276682), (84, 256919), (91, 237156), (156, 138341), (182, 118578), (273, 79052), (364, 59289), (546, 39526), (1092, 19763)]