21848860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{5227}}^1$

素因数の和:5266

約数の個数: 48

約数和(自身を含む): 52698240

約数和(自身を除く): 30849380

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 5227, 10454, 20908, 26135, 52270, 57497, 99313, 104540, 114994, 198626, 229988, 287485, 397252, 496565, 574970, 993130, 1092443, 1149940, 1986260, 2184886, 4369772, 5462215, 10924430, 21848860]

約数ペア:

[(1, 21848860), (2, 10924430), (4, 5462215), (5, 4369772), (10, 2184886), (11, 1986260), (19, 1149940), (20, 1092443), (22, 993130), (38, 574970), (44, 496565), (55, 397252), (76, 287485), (95, 229988), (110, 198626), (190, 114994), (209, 104540), (220, 99313), (380, 57497), (418, 52270), (836, 26135), (1045, 20908), (2090, 10454), (4180, 5227)]