19889955

素因数分解:

$3^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{733}}^1$

素因数の和:817

約数の個数: 40

約数和(自身を含む): 36236112

約数和(自身を除く): 16346157

約数列:

[1, 3, 5, 9, 15, 27, 45, 67, 81, 135, 201, 335, 405, 603, 733, 1005, 1809, 2199, 3015, 3665, 5427, 6597, 9045, 10995, 19791, 27135, 32985, 49111, 59373, 98955, 147333, 245555, 296865, 441999, 736665, 1325997, 2209995, 3977991, 6629985, 19889955]

約数ペア:

[(1, 19889955), (3, 6629985), (5, 3977991), (9, 2209995), (15, 1325997), (27, 736665), (45, 441999), (67, 296865), (81, 245555), (135, 147333), (201, 98955), (335, 59373), (405, 49111), (603, 32985), (733, 27135), (1005, 19791), (1809, 10995), (2199, 9045), (3015, 6597), (3665, 5427)]