28862729

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:213

約数の個数: 32

約数和(自身を含む): 36556800

約数和(自身を除く): 7694071

約数列:

[1, 7, 19, 41, 67, 79, 133, 287, 469, 553, 779, 1273, 1501, 2747, 3239, 5293, 5453, 8911, 10507, 19229, 22673, 37051, 52193, 61541, 100567, 217013, 365351, 430787, 703969, 1519091, 4123247, 28862729]

約数ペア:

[(1, 28862729), (7, 4123247), (19, 1519091), (41, 703969), (67, 430787), (79, 365351), (133, 217013), (287, 100567), (469, 61541), (553, 52193), (779, 37051), (1273, 22673), (1501, 19229), (2747, 10507), (3239, 8911), (5293, 5453)]