21067522

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{41}}^1\times {\mathrm{127}}^1$

素因数の和:211

約数の個数: 48

約数和(自身を含む): 39610368

約数和(自身を除く): 18542846

約数列:

[1, 2, 7, 14, 17, 34, 41, 82, 119, 127, 238, 254, 287, 289, 574, 578, 697, 889, 1394, 1778, 2023, 2159, 4046, 4318, 4879, 5207, 9758, 10414, 11849, 15113, 23698, 30226, 36449, 36703, 72898, 73406, 82943, 88519, 165886, 177038, 256921, 513842, 619633, 1239266, 1504823, 3009646, 10533761, 21067522]

約数ペア:

[(1, 21067522), (2, 10533761), (7, 3009646), (14, 1504823), (17, 1239266), (34, 619633), (41, 513842), (82, 256921), (119, 177038), (127, 165886), (238, 88519), (254, 82943), (287, 73406), (289, 72898), (574, 36703), (578, 36449), (697, 30226), (889, 23698), (1394, 15113), (1778, 11849), (2023, 10414), (2159, 9758), (4046, 5207), (4318, 4879)]