16861221

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{683}}^1$

素因数の和:913

約数の個数: 24

約数和(自身を含む): 26391456

約数和(自身を除く): 9530235

約数列:

[1, 3, 9, 13, 39, 117, 211, 633, 683, 1899, 2049, 2743, 6147, 8229, 8879, 24687, 26637, 79911, 144113, 432339, 1297017, 1873469, 5620407, 16861221]

約数ペア:

[(1, 16861221), (3, 5620407), (9, 1873469), (13, 1297017), (39, 432339), (117, 144113), (211, 79911), (633, 26637), (683, 24687), (1899, 8879), (2049, 8229), (2743, 6147)]