390787761

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{19609}}^1$

素因数の和:19705

約数の個数: 32

約数和(自身を含む): 650110720

約数和(自身を除く): 259322959

約数列:

[1, 3, 7, 13, 21, 39, 73, 91, 219, 273, 511, 949, 1533, 2847, 6643, 19609, 19929, 58827, 137263, 254917, 411789, 764751, 1431457, 1784419, 4294371, 5353257, 10020199, 18608941, 30060597, 55826823, 130262587, 390787761]

約数ペア:

[(1, 390787761), (3, 130262587), (7, 55826823), (13, 30060597), (21, 18608941), (39, 10020199), (73, 5353257), (91, 4294371), (219, 1784419), (273, 1431457), (511, 764751), (949, 411789), (1533, 254917), (2847, 137263), (6643, 58827), (19609, 19929)]