19746256

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{971}}^1$

素因数の和:1051

約数の個数: 40

約数和(自身を含む): 40497408

約数和(自身を除く): 20751152

約数列:

[1, 2, 4, 8, 16, 31, 41, 62, 82, 124, 164, 248, 328, 496, 656, 971, 1271, 1942, 2542, 3884, 5084, 7768, 10168, 15536, 20336, 30101, 39811, 60202, 79622, 120404, 159244, 240808, 318488, 481616, 636976, 1234141, 2468282, 4936564, 9873128, 19746256]

約数ペア:

[(1, 19746256), (2, 9873128), (4, 4936564), (8, 2468282), (16, 1234141), (31, 636976), (41, 481616), (62, 318488), (82, 240808), (124, 159244), (164, 120404), (248, 79622), (328, 60202), (496, 39811), (656, 30101), (971, 20336), (1271, 15536), (1942, 10168), (2542, 7768), (3884, 5084)]