157121279

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{97}}^1\times {\mathrm{641}}^1$

素因数の和:783

約数の個数: 24

約数和(自身を含む): 191767968

約数和(自身を除く): 34646689

約数列:

[1, 7, 19, 97, 133, 361, 641, 679, 1843, 2527, 4487, 12179, 12901, 35017, 62177, 85253, 231401, 245119, 435239, 1181363, 1619807, 8269541, 22445897, 157121279]

約数ペア:

[(1, 157121279), (7, 22445897), (19, 8269541), (97, 1619807), (133, 1181363), (361, 435239), (641, 245119), (679, 231401), (1843, 85253), (2527, 62177), (4487, 35017), (12179, 12901)]