21926247

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{307}}^1$

素因数の和:515

約数の個数: 32

約数和(自身を含む): 35481600

約数和(自身を除く): 13555353

約数列:

[1, 3, 7, 19, 21, 57, 133, 179, 307, 399, 537, 921, 1253, 2149, 3401, 3759, 5833, 6447, 10203, 17499, 23807, 40831, 54953, 71421, 122493, 164859, 384671, 1044107, 1154013, 3132321, 7308749, 21926247]

約数ペア:

[(1, 21926247), (3, 7308749), (7, 3132321), (19, 1154013), (21, 1044107), (57, 384671), (133, 164859), (179, 122493), (307, 71421), (399, 54953), (537, 40831), (921, 23807), (1253, 17499), (2149, 10203), (3401, 6447), (3759, 5833)]