217437311

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{1877}}^1$

素因数の和:1983

約数の個数: 32

約数和(自身を含む): 286056960

約数和(自身を除く): 68619649

約数列:

[1, 7, 13, 19, 67, 91, 133, 247, 469, 871, 1273, 1729, 1877, 6097, 8911, 13139, 16549, 24401, 35663, 115843, 125759, 170807, 249641, 463619, 880313, 1634867, 2389421, 3245333, 11444069, 16725947, 31062473, 217437311]

約数ペア:

[(1, 217437311), (7, 31062473), (13, 16725947), (19, 11444069), (67, 3245333), (91, 2389421), (133, 1634867), (247, 880313), (469, 463619), (871, 249641), (1273, 170807), (1729, 125759), (1877, 115843), (6097, 35663), (8911, 24401), (13139, 16549)]