221498307

素因数分解:

$3^4\times {\mathrm{103}}^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1$

素因数の和:445

約数の個数: 40

約数和(自身を含む): 338257920

約数和(自身を除く): 116759613

約数列:

[1, 3, 9, 27, 81, 103, 139, 191, 309, 417, 573, 927, 1251, 1719, 2781, 3753, 5157, 8343, 11259, 14317, 15471, 19673, 26549, 42951, 59019, 79647, 128853, 177057, 238941, 386559, 531171, 716823, 1159677, 1593513, 2150469, 2734547, 8203641, 24610923, 73832769, 221498307]

約数ペア:

[(1, 221498307), (3, 73832769), (9, 24610923), (27, 8203641), (81, 2734547), (103, 2150469), (139, 1593513), (191, 1159677), (309, 716823), (417, 531171), (573, 386559), (927, 238941), (1251, 177057), (1719, 128853), (2781, 79647), (3753, 59019), (5157, 42951), (8343, 26549), (11259, 19673), (14317, 15471)]