21414920

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{2803}}^1$

素因数の和:3005

約数の個数: 32

約数和(自身を含む): 48453120

約数和(自身を除く): 27038200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 2803, 3820, 5606, 7640, 11212, 14015, 22424, 28030, 56060, 112120, 535373, 1070746, 2141492, 2676865, 4282984, 5353730, 10707460, 21414920]

約数ペア:

[(1, 21414920), (2, 10707460), (4, 5353730), (5, 4282984), (8, 2676865), (10, 2141492), (20, 1070746), (40, 535373), (191, 112120), (382, 56060), (764, 28030), (955, 22424), (1528, 14015), (1910, 11212), (2803, 7640), (3820, 5606)]