654483921

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2397377}}^1$

素因数の和:2397400

約数の個数: 16

約数和(自身を含む): 1074025344

約数和(自身を除く): 419541423

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 2397377, 7192131, 16781639, 31165901, 50344917, 93497703, 218161307, 654483921]

約数ペア:

[(1, 654483921), (3, 218161307), (7, 93497703), (13, 50344917), (21, 31165901), (39, 16781639), (91, 7192131), (273, 2397377)]