20321970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{39847}}^1$

素因数の和:39874

約数の個数: 32

約数和(自身を含む): 51643008

約数和(自身を除く): 31321038

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 170, 255, 510, 39847, 79694, 119541, 199235, 239082, 398470, 597705, 677399, 1195410, 1354798, 2032197, 3386995, 4064394, 6773990, 10160985, 20321970]

約数ペア:

[(1, 20321970), (2, 10160985), (3, 6773990), (5, 4064394), (6, 3386995), (10, 2032197), (15, 1354798), (17, 1195410), (30, 677399), (34, 597705), (51, 398470), (85, 239082), (102, 199235), (170, 119541), (255, 79694), (510, 39847)]