21066915

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{383}}^1$

素因数の和:603

約数の個数: 32

約数和(自身を含む): 35758080

約数和(自身を除く): 14691165

約数列:

[1, 3, 5, 15, 19, 57, 95, 193, 285, 383, 579, 965, 1149, 1915, 2895, 3667, 5745, 7277, 11001, 18335, 21831, 36385, 55005, 73919, 109155, 221757, 369595, 1108785, 1404461, 4213383, 7022305, 21066915]

約数ペア:

[(1, 21066915), (3, 7022305), (5, 4213383), (15, 1404461), (19, 1108785), (57, 369595), (95, 221757), (193, 109155), (285, 73919), (383, 55005), (579, 36385), (965, 21831), (1149, 18335), (1915, 11001), (2895, 7277), (3667, 5745)]