21332725

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{463}}^1$

素因数の和:589

約数の個数: 24

約数和(自身を含む): 28192640

約数和(自身を除く): 6859915

約数列:

[1, 5, 19, 25, 95, 97, 463, 475, 485, 1843, 2315, 2425, 8797, 9215, 11575, 43985, 44911, 46075, 219925, 224555, 853309, 1122775, 4266545, 21332725]

約数ペア:

[(1, 21332725), (5, 4266545), (19, 1122775), (25, 853309), (95, 224555), (97, 219925), (463, 46075), (475, 44911), (485, 43985), (1843, 11575), (2315, 9215), (2425, 8797)]