21110159

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:219

約数の個数: 32

約数和(自身を含む): 27156480

約数和(自身を除く): 6046321

約数列:

[1, 7, 19, 23, 67, 103, 133, 161, 437, 469, 721, 1273, 1541, 1957, 2369, 3059, 6901, 8911, 10787, 13699, 16583, 29279, 45011, 48307, 131119, 158723, 204953, 315077, 917833, 1111061, 3015737, 21110159]

約数ペア:

[(1, 21110159), (7, 3015737), (19, 1111061), (23, 917833), (67, 315077), (103, 204953), (133, 158723), (161, 131119), (437, 48307), (469, 45011), (721, 29279), (1273, 16583), (1541, 13699), (1957, 10787), (2369, 8911), (3059, 6901)]