16980327

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6911}}^1$

素因数の和:6940

約数の個数: 32

約数和(自身を含む): 30965760

約数和(自身を除く): 13985433

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 6911, 20733, 48377, 62199, 89843, 145131, 186597, 269529, 435393, 628901, 808587, 1306179, 1886703, 2425761, 5660109, 16980327]

約数ペア:

[(1, 16980327), (3, 5660109), (7, 2425761), (9, 1886703), (13, 1306179), (21, 808587), (27, 628901), (39, 435393), (63, 269529), (91, 186597), (117, 145131), (189, 89843), (273, 62199), (351, 48377), (819, 20733), (2457, 6911)]