21546285

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{173}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 38185344

約数和(自身を除く): 16639059

約数列:

[1, 3, 5, 15, 19, 23, 57, 69, 95, 115, 173, 285, 345, 361, 437, 519, 865, 1083, 1311, 1805, 2185, 2595, 3287, 3979, 5415, 6555, 8303, 9861, 11937, 16435, 19895, 24909, 41515, 49305, 59685, 62453, 75601, 124545, 187359, 226803, 312265, 378005, 936795, 1134015, 1436419, 4309257, 7182095, 21546285]

約数ペア:

[(1, 21546285), (3, 7182095), (5, 4309257), (15, 1436419), (19, 1134015), (23, 936795), (57, 378005), (69, 312265), (95, 226803), (115, 187359), (173, 124545), (285, 75601), (345, 62453), (361, 59685), (437, 49305), (519, 41515), (865, 24909), (1083, 19895), (1311, 16435), (1805, 11937), (2185, 9861), (2595, 8303), (3287, 6555), (3979, 5415)]