21569464

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1$

素因数の和:332

約数の個数: 64

約数和(自身を含む): 49593600

約数和(自身を除く): 28024136

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 119, 136, 139, 163, 238, 278, 326, 476, 556, 652, 952, 973, 1112, 1141, 1304, 1946, 2282, 2363, 2771, 3892, 4564, 4726, 5542, 7784, 9128, 9452, 11084, 16541, 18904, 19397, 22168, 22657, 33082, 38794, 45314, 66164, 77588, 90628, 132328, 155176, 158599, 181256, 317198, 385169, 634396, 770338, 1268792, 1540676, 2696183, 3081352, 5392366, 10784732, 21569464]

約数ペア:

[(1, 21569464), (2, 10784732), (4, 5392366), (7, 3081352), (8, 2696183), (14, 1540676), (17, 1268792), (28, 770338), (34, 634396), (56, 385169), (68, 317198), (119, 181256), (136, 158599), (139, 155176), (163, 132328), (238, 90628), (278, 77588), (326, 66164), (476, 45314), (556, 38794), (652, 33082), (952, 22657), (973, 22168), (1112, 19397), (1141, 18904), (1304, 16541), (1946, 11084), (2282, 9452), (2363, 9128), (2771, 7784), (3892, 5542), (4564, 4726)]