21087320

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{22921}}^1$

素因数の和:22955

約数の個数: 32

約数和(自身を含む): 49511520

約数和(自身を除く): 28424200

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 22921, 45842, 91684, 114605, 183368, 229210, 458420, 527183, 916840, 1054366, 2108732, 2635915, 4217464, 5271830, 10543660, 21087320]

約数ペア:

[(1, 21087320), (2, 10543660), (4, 5271830), (5, 4217464), (8, 2635915), (10, 2108732), (20, 1054366), (23, 916840), (40, 527183), (46, 458420), (92, 229210), (115, 183368), (184, 114605), (230, 91684), (460, 45842), (920, 22921)]