20281722

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:187

約数の個数: 64

約数和(自身を含む): 44789760

約数和(自身を除く): 24508038

約数列:

[1, 2, 3, 6, 23, 46, 47, 53, 59, 69, 94, 106, 118, 138, 141, 159, 177, 282, 318, 354, 1081, 1219, 1357, 2162, 2438, 2491, 2714, 2773, 3127, 3243, 3657, 4071, 4982, 5546, 6254, 6486, 7314, 7473, 8142, 8319, 9381, 14946, 16638, 18762, 57293, 63779, 71921, 114586, 127558, 143842, 146969, 171879, 191337, 215763, 293938, 343758, 382674, 431526, 440907, 881814, 3380287, 6760574, 10140861, 20281722]

約数ペア:

[(1, 20281722), (2, 10140861), (3, 6760574), (6, 3380287), (23, 881814), (46, 440907), (47, 431526), (53, 382674), (59, 343758), (69, 293938), (94, 215763), (106, 191337), (118, 171879), (138, 146969), (141, 143842), (159, 127558), (177, 114586), (282, 71921), (318, 63779), (354, 57293), (1081, 18762), (1219, 16638), (1357, 14946), (2162, 9381), (2438, 8319), (2491, 8142), (2714, 7473), (2773, 7314), (3127, 6486), (3243, 6254), (3657, 5546), (4071, 4982)]