21422975

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{379}}^1$

素因数の和:432

約数の個数: 48

約数和(自身を含む): 33926400

約数和(自身を除く): 12503425

約数列:

[1, 5, 7, 17, 19, 25, 35, 85, 95, 119, 133, 175, 323, 379, 425, 475, 595, 665, 1615, 1895, 2261, 2653, 2975, 3325, 6443, 7201, 8075, 9475, 11305, 13265, 32215, 36005, 45101, 50407, 56525, 66325, 122417, 161075, 180025, 225505, 252035, 612085, 856919, 1127525, 1260175, 3060425, 4284595, 21422975]

約数ペア:

[(1, 21422975), (5, 4284595), (7, 3060425), (17, 1260175), (19, 1127525), (25, 856919), (35, 612085), (85, 252035), (95, 225505), (119, 180025), (133, 161075), (175, 122417), (323, 66325), (379, 56525), (425, 50407), (475, 45101), (595, 36005), (665, 32215), (1615, 13265), (1895, 11305), (2261, 9475), (2653, 8075), (2975, 7201), (3325, 6443)]