31779153

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 55910400

約数和(自身を除く): 24131247

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 139, 171, 191, 399, 417, 573, 973, 1197, 1251, 1337, 1719, 2641, 2919, 3629, 4011, 7923, 8757, 10887, 12033, 18487, 23769, 25403, 26549, 32661, 55461, 76209, 79647, 166383, 185843, 228627, 238941, 504431, 557529, 1513293, 1672587, 3531017, 4539879, 10593051, 31779153]

約数ペア:

[(1, 31779153), (3, 10593051), (7, 4539879), (9, 3531017), (19, 1672587), (21, 1513293), (57, 557529), (63, 504431), (133, 238941), (139, 228627), (171, 185843), (191, 166383), (399, 79647), (417, 76209), (573, 55461), (973, 32661), (1197, 26549), (1251, 25403), (1337, 23769), (1719, 18487), (2641, 12033), (2919, 10887), (3629, 8757), (4011, 7923)]