21357176

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{719}}^1$

素因数の和:851

約数の個数: 32

約数和(自身を含む): 41472000

約数和(自身を除く): 20114824

約数列:

[1, 2, 4, 8, 47, 79, 94, 158, 188, 316, 376, 632, 719, 1438, 2876, 3713, 5752, 7426, 14852, 29704, 33793, 56801, 67586, 113602, 135172, 227204, 270344, 454408, 2669647, 5339294, 10678588, 21357176]

約数ペア:

[(1, 21357176), (2, 10678588), (4, 5339294), (8, 2669647), (47, 454408), (79, 270344), (94, 227204), (158, 135172), (188, 113602), (316, 67586), (376, 56801), (632, 33793), (719, 29704), (1438, 14852), (2876, 7426), (3713, 5752)]