21988670

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1$

素因数の和:221

約数の個数: 64

約数和(自身を含む): 45800640

約数和(自身を除く): 23811970

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 61, 110, 113, 122, 145, 226, 290, 305, 319, 565, 610, 638, 671, 1130, 1243, 1342, 1595, 1769, 2486, 3190, 3277, 3355, 3538, 6215, 6554, 6710, 6893, 8845, 12430, 13786, 16385, 17690, 19459, 32770, 34465, 36047, 38918, 68930, 72094, 75823, 97295, 151646, 180235, 194590, 199897, 360470, 379115, 399794, 758230, 999485, 1998970, 2198867, 4397734, 10994335, 21988670]

約数ペア:

[(1, 21988670), (2, 10994335), (5, 4397734), (10, 2198867), (11, 1998970), (22, 999485), (29, 758230), (55, 399794), (58, 379115), (61, 360470), (110, 199897), (113, 194590), (122, 180235), (145, 151646), (226, 97295), (290, 75823), (305, 72094), (319, 68930), (565, 38918), (610, 36047), (638, 34465), (671, 32770), (1130, 19459), (1243, 17690), (1342, 16385), (1595, 13786), (1769, 12430), (2486, 8845), (3190, 6893), (3277, 6710), (3355, 6554), (3538, 6215)]