21389230

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{2677}}^1$

素因数の和:2748

約数の個数: 32

約数和(自身を含む): 41648256

約数和(自身を除く): 20259026

約数列:

[1, 2, 5, 10, 17, 34, 47, 85, 94, 170, 235, 470, 799, 1598, 2677, 3995, 5354, 7990, 13385, 26770, 45509, 91018, 125819, 227545, 251638, 455090, 629095, 1258190, 2138923, 4277846, 10694615, 21389230]

約数ペア:

[(1, 21389230), (2, 10694615), (5, 4277846), (10, 2138923), (17, 1258190), (34, 629095), (47, 455090), (85, 251638), (94, 227545), (170, 125819), (235, 91018), (470, 45509), (799, 26770), (1598, 13385), (2677, 7990), (3995, 5354)]