20857104

素因数分解:

$2^4\times 3^2\times {\mathrm{241}}^1\times {\mathrm{601}}^1$

素因数の和:856

約数の個数: 60

約数和(自身を含む): 58710652

約数和(自身を除く): 37853548

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 241, 482, 601, 723, 964, 1202, 1446, 1803, 1928, 2169, 2404, 2892, 3606, 3856, 4338, 4808, 5409, 5784, 7212, 8676, 9616, 10818, 11568, 14424, 17352, 21636, 28848, 34704, 43272, 86544, 144841, 289682, 434523, 579364, 869046, 1158728, 1303569, 1738092, 2317456, 2607138, 3476184, 5214276, 6952368, 10428552, 20857104]

約数ペア:

[(1, 20857104), (2, 10428552), (3, 6952368), (4, 5214276), (6, 3476184), (8, 2607138), (9, 2317456), (12, 1738092), (16, 1303569), (18, 1158728), (24, 869046), (36, 579364), (48, 434523), (72, 289682), (144, 144841), (241, 86544), (482, 43272), (601, 34704), (723, 28848), (964, 21636), (1202, 17352), (1446, 14424), (1803, 11568), (1928, 10818), (2169, 9616), (2404, 8676), (2892, 7212), (3606, 5784), (3856, 5409), (4338, 4808)]