19886793

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1\times {\mathrm{401}}^1$

素因数の和:736

約数の個数: 16

約数和(自身を含む): 27117312

約数和(自身を除く): 7230519

約数列:

[1, 3, 61, 183, 271, 401, 813, 1203, 16531, 24461, 49593, 73383, 108671, 326013, 6628931, 19886793]

約数ペア:

[(1, 19886793), (3, 6628931), (61, 326013), (183, 108671), (271, 73383), (401, 49593), (813, 24461), (1203, 16531)]