21954015

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{16823}}^1$

素因数の和:16863

約数の個数: 24

約数和(自身を含む): 39368160

約数和(自身を除く): 17414145

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 16823, 50469, 84115, 151407, 252345, 487867, 757035, 1463601, 2439335, 4390803, 7318005, 21954015]

約数ペア:

[(1, 21954015), (3, 7318005), (5, 4390803), (9, 2439335), (15, 1463601), (29, 757035), (45, 487867), (87, 252345), (145, 151407), (261, 84115), (435, 50469), (1305, 16823)]