21548176

素因数分解:

$2^4\times {\mathrm{13}}^3\times {\mathrm{613}}^1$

素因数の和:660

約数の個数: 40

約数和(自身を含む): 45300920

約数和(自身を除く): 23752744

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 613, 676, 1226, 1352, 2197, 2452, 2704, 4394, 4904, 7969, 8788, 9808, 15938, 17576, 31876, 35152, 63752, 103597, 127504, 207194, 414388, 828776, 1346761, 1657552, 2693522, 5387044, 10774088, 21548176]

約数ペア:

[(1, 21548176), (2, 10774088), (4, 5387044), (8, 2693522), (13, 1657552), (16, 1346761), (26, 828776), (52, 414388), (104, 207194), (169, 127504), (208, 103597), (338, 63752), (613, 35152), (676, 31876), (1226, 17576), (1352, 15938), (2197, 9808), (2452, 8788), (2704, 7969), (4394, 4904)]