21041320

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{22871}}^1$

素因数の和:22905

約数の個数: 32

約数和(自身を含む): 49403520

約数和(自身を除く): 28362200

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 22871, 45742, 91484, 114355, 182968, 228710, 457420, 526033, 914840, 1052066, 2104132, 2630165, 4208264, 5260330, 10520660, 21041320]

約数ペア:

[(1, 21041320), (2, 10520660), (4, 5260330), (5, 4208264), (8, 2630165), (10, 2104132), (20, 1052066), (23, 914840), (40, 526033), (46, 457420), (92, 228710), (115, 182968), (184, 114355), (230, 91484), (460, 45742), (920, 22871)]