19690363

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 25915392

約数和(自身を除く): 6225029

約数列:

[1, 7, 11, 31, 73, 77, 113, 217, 341, 511, 791, 803, 1243, 2263, 2387, 3503, 5621, 8249, 8701, 15841, 24521, 24893, 38533, 57743, 90739, 174251, 255719, 269731, 635173, 1790033, 2812909, 19690363]

約数ペア:

[(1, 19690363), (7, 2812909), (11, 1790033), (31, 635173), (73, 269731), (77, 255719), (113, 174251), (217, 90739), (341, 57743), (511, 38533), (791, 24893), (803, 24521), (1243, 15841), (2263, 8701), (2387, 8249), (3503, 5621)]