21442278

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{373}}^1$

素因数の和:469

約数の個数: 64

約数和(自身を含む): 51270912

約数和(自身を除く): 29828634

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 67, 78, 134, 143, 201, 286, 373, 402, 429, 737, 746, 858, 871, 1119, 1474, 1742, 2211, 2238, 2613, 4103, 4422, 4849, 5226, 8206, 9581, 9698, 12309, 14547, 19162, 24618, 24991, 28743, 29094, 49982, 53339, 57486, 74973, 106678, 149946, 160017, 274901, 320034, 324883, 549802, 649766, 824703, 974649, 1649406, 1949298, 3573713, 7147426, 10721139, 21442278]

約数ペア:

[(1, 21442278), (2, 10721139), (3, 7147426), (6, 3573713), (11, 1949298), (13, 1649406), (22, 974649), (26, 824703), (33, 649766), (39, 549802), (66, 324883), (67, 320034), (78, 274901), (134, 160017), (143, 149946), (201, 106678), (286, 74973), (373, 57486), (402, 53339), (429, 49982), (737, 29094), (746, 28743), (858, 24991), (871, 24618), (1119, 19162), (1474, 14547), (1742, 12309), (2211, 9698), (2238, 9581), (2613, 8206), (4103, 5226), (4422, 4849)]