81411393

素因数分解:

$3^1\times 7^3\times {\mathrm{61}}^1\times {\mathrm{1297}}^1$

素因数の和:1382

約数の個数: 32

約数和(自身を含む): 128761600

約数和(自身を除く): 47350207

約数列:

[1, 3, 7, 21, 49, 61, 147, 183, 343, 427, 1029, 1281, 1297, 2989, 3891, 8967, 9079, 20923, 27237, 62769, 63553, 79117, 190659, 237351, 444871, 553819, 1334613, 1661457, 3876733, 11630199, 27137131, 81411393]

約数ペア:

[(1, 81411393), (3, 27137131), (7, 11630199), (21, 3876733), (49, 1661457), (61, 1334613), (147, 553819), (183, 444871), (343, 237351), (427, 190659), (1029, 79117), (1281, 63553), (1297, 62769), (2989, 27237), (3891, 20923), (8967, 9079)]