1277698947

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{74471}}^1$

素因数の和:74543

約数の個数: 32

約数和(自身を含む): 2097131520

約数和(自身を除く): 819432573

約数列:

[1, 3, 7, 19, 21, 43, 57, 129, 133, 301, 399, 817, 903, 2451, 5719, 17157, 74471, 223413, 521297, 1414949, 1563891, 3202253, 4244847, 9606759, 9904643, 22415771, 29713929, 60842807, 67247313, 182528421, 425899649, 1277698947]

約数ペア:

[(1, 1277698947), (3, 425899649), (7, 182528421), (19, 67247313), (21, 60842807), (43, 29713929), (57, 22415771), (129, 9904643), (133, 9606759), (301, 4244847), (399, 3202253), (817, 1563891), (903, 1414949), (2451, 521297), (5719, 223413), (17157, 74471)]