15640947

素因数分解:

$3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{1223}}^1$

素因数の和:1272

約数の個数: 36

約数和(自身を含む): 27209520

約数和(自身を除く): 11568573

約数列:

[1, 3, 7, 9, 21, 29, 49, 63, 87, 147, 203, 261, 441, 609, 1223, 1421, 1827, 3669, 4263, 8561, 11007, 12789, 25683, 35467, 59927, 77049, 106401, 179781, 248269, 319203, 539343, 744807, 1737883, 2234421, 5213649, 15640947]

約数ペア:

[(1, 15640947), (3, 5213649), (7, 2234421), (9, 1737883), (21, 744807), (29, 539343), (49, 319203), (63, 248269), (87, 179781), (147, 106401), (203, 77049), (261, 59927), (441, 35467), (609, 25683), (1223, 12789), (1421, 11007), (1827, 8561), (3669, 4263)]