256487553

素因数分解:

$3^4\times 7^1\times {\mathrm{317}}^1\times {\mathrm{1427}}^1$

素因数の和:1763

約数の個数: 40

約数和(自身を含む): 439572672

約数和(自身を除く): 183085119

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 317, 567, 951, 1427, 2219, 2853, 4281, 6657, 8559, 9989, 12843, 19971, 25677, 29967, 38529, 59913, 89901, 115587, 179739, 269703, 452359, 809109, 1357077, 3166513, 4071231, 9499539, 12213693, 28498617, 36641079, 85495851, 256487553]

約数ペア:

[(1, 256487553), (3, 85495851), (7, 36641079), (9, 28498617), (21, 12213693), (27, 9499539), (63, 4071231), (81, 3166513), (189, 1357077), (317, 809109), (567, 452359), (951, 269703), (1427, 179739), (2219, 115587), (2853, 89901), (4281, 59913), (6657, 38529), (8559, 29967), (9989, 25677), (12843, 19971)]