20197656

素因数分解:

$2^3\times 3^2\times {\mathrm{163}}^1\times {\mathrm{1721}}^1$

素因数の和:1896

約数の個数: 48

約数和(自身を含む): 55069560

約数和(自身を除く): 34871904

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 163, 326, 489, 652, 978, 1304, 1467, 1721, 1956, 2934, 3442, 3912, 5163, 5868, 6884, 10326, 11736, 13768, 15489, 20652, 30978, 41304, 61956, 123912, 280523, 561046, 841569, 1122092, 1683138, 2244184, 2524707, 3366276, 5049414, 6732552, 10098828, 20197656]

約数ペア:

[(1, 20197656), (2, 10098828), (3, 6732552), (4, 5049414), (6, 3366276), (8, 2524707), (9, 2244184), (12, 1683138), (18, 1122092), (24, 841569), (36, 561046), (72, 280523), (163, 123912), (326, 61956), (489, 41304), (652, 30978), (978, 20652), (1304, 15489), (1467, 13768), (1721, 11736), (1956, 10326), (2934, 6884), (3442, 5868), (3912, 5163)]