30991527

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1523}}^1$

素因数の和:1572

約数の個数: 48

約数和(自身を含む): 57058560

約数和(自身を除く): 26067033

約数列:

[1, 3, 7, 9, 17, 19, 21, 51, 57, 63, 119, 133, 153, 171, 323, 357, 399, 969, 1071, 1197, 1523, 2261, 2907, 4569, 6783, 10661, 13707, 20349, 25891, 28937, 31983, 77673, 86811, 95949, 181237, 202559, 233019, 260433, 491929, 543711, 607677, 1475787, 1631133, 1823031, 3443503, 4427361, 10330509, 30991527]

約数ペア:

[(1, 30991527), (3, 10330509), (7, 4427361), (9, 3443503), (17, 1823031), (19, 1631133), (21, 1475787), (51, 607677), (57, 543711), (63, 491929), (119, 260433), (133, 233019), (153, 202559), (171, 181237), (323, 95949), (357, 86811), (399, 77673), (969, 31983), (1071, 28937), (1197, 25891), (1523, 20349), (2261, 13707), (2907, 10661), (4569, 6783)]