18689312

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{521}}^1$

素因数の和:609

約数の個数: 48

約数和(自身を含む): 39463200

約数和(自身を除く): 20773888

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 59, 76, 118, 152, 236, 304, 472, 521, 608, 944, 1042, 1121, 1888, 2084, 2242, 4168, 4484, 8336, 8968, 9899, 16672, 17936, 19798, 30739, 35872, 39596, 61478, 79192, 122956, 158384, 245912, 316768, 491824, 584041, 983648, 1168082, 2336164, 4672328, 9344656, 18689312]

約数ペア:

[(1, 18689312), (2, 9344656), (4, 4672328), (8, 2336164), (16, 1168082), (19, 983648), (32, 584041), (38, 491824), (59, 316768), (76, 245912), (118, 158384), (152, 122956), (236, 79192), (304, 61478), (472, 39596), (521, 35872), (608, 30739), (944, 19798), (1042, 17936), (1121, 16672), (1888, 9899), (2084, 8968), (2242, 8336), (4168, 4484)]