214908981

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{557}}^1\times {\mathrm{967}}^1$

素因数の和:1553

約数の個数: 32

約数和(自身を含む): 345692160

約数和(自身を除く): 130783179

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 557, 967, 1671, 2901, 3899, 6769, 10583, 11697, 18373, 20307, 31749, 55119, 74081, 128611, 222243, 385833, 538619, 1615857, 3770333, 10233761, 11310999, 30701283, 71636327, 214908981]

約数ペア:

[(1, 214908981), (3, 71636327), (7, 30701283), (19, 11310999), (21, 10233761), (57, 3770333), (133, 1615857), (399, 538619), (557, 385833), (967, 222243), (1671, 128611), (2901, 74081), (3899, 55119), (6769, 31749), (10583, 20307), (11697, 18373)]