254961

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:106

約数の個数: 32

約数和(自身を含む): 460800

約数和(自身を除く): 205839

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 71, 133, 171, 189, 213, 399, 497, 513, 639, 1197, 1349, 1491, 1917, 3591, 4047, 4473, 9443, 12141, 13419, 28329, 36423, 84987, 254961]

約数ペア:

[(1, 254961), (3, 84987), (7, 36423), (9, 28329), (19, 13419), (21, 12141), (27, 9443), (57, 4473), (63, 4047), (71, 3591), (133, 1917), (171, 1491), (189, 1349), (213, 1197), (399, 639), (497, 513)]