19810016

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{21347}}^1$

素因数の和:21386

約数の個数: 24

約数和(自身を含む): 40347720

約数和(自身を除く): 20537704

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 116, 232, 464, 928, 21347, 42694, 85388, 170776, 341552, 619063, 683104, 1238126, 2476252, 4952504, 9905008, 19810016]

約数ペア:

[(1, 19810016), (2, 9905008), (4, 4952504), (8, 2476252), (16, 1238126), (29, 683104), (32, 619063), (58, 341552), (116, 170776), (232, 85388), (464, 42694), (928, 21347)]