21080190

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{223}}^1$

素因数の和:393

約数の個数: 64

約数和(自身を含む): 53415936

約数和(自身を除く): 32335746

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 137, 138, 223, 230, 274, 345, 411, 446, 669, 685, 690, 822, 1115, 1338, 1370, 2055, 2230, 3151, 3345, 4110, 5129, 6302, 6690, 9453, 10258, 15387, 15755, 18906, 25645, 30551, 30774, 31510, 47265, 51290, 61102, 76935, 91653, 94530, 152755, 153870, 183306, 305510, 458265, 702673, 916530, 1405346, 2108019, 3513365, 4216038, 7026730, 10540095, 21080190]

約数ペア:

[(1, 21080190), (2, 10540095), (3, 7026730), (5, 4216038), (6, 3513365), (10, 2108019), (15, 1405346), (23, 916530), (30, 702673), (46, 458265), (69, 305510), (115, 183306), (137, 153870), (138, 152755), (223, 94530), (230, 91653), (274, 76935), (345, 61102), (411, 51290), (446, 47265), (669, 31510), (685, 30774), (690, 30551), (822, 25645), (1115, 18906), (1338, 15755), (1370, 15387), (2055, 10258), (2230, 9453), (3151, 6690), (3345, 6302), (4110, 5129)]