21693645

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15551}}^1$

素因数の和:15593

約数の個数: 24

約数和(自身を含む): 38817792

約数和(自身を除く): 17124147

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 15551, 46653, 77755, 139959, 233265, 482081, 699795, 1446243, 2410405, 4338729, 7231215, 21693645]

約数ペア:

[(1, 21693645), (3, 7231215), (5, 4338729), (9, 2410405), (15, 1446243), (31, 699795), (45, 482081), (93, 233265), (155, 139959), (279, 77755), (465, 46653), (1395, 15551)]