209971132

素因数分解:

$2^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1\times {\mathrm{431}}^1$

素因数の和:706

約数の個数: 48

約数和(自身を含む): 427327488

約数和(自身を除く): 217356356

約数列:

[1, 2, 4, 7, 14, 28, 127, 137, 254, 274, 431, 508, 548, 862, 889, 959, 1724, 1778, 1918, 3017, 3556, 3836, 6034, 12068, 17399, 34798, 54737, 59047, 69596, 109474, 118094, 121793, 218948, 236188, 243586, 383159, 413329, 487172, 766318, 826658, 1532636, 1653316, 7498969, 14997938, 29995876, 52492783, 104985566, 209971132]

約数ペア:

[(1, 209971132), (2, 104985566), (4, 52492783), (7, 29995876), (14, 14997938), (28, 7498969), (127, 1653316), (137, 1532636), (254, 826658), (274, 766318), (431, 487172), (508, 413329), (548, 383159), (862, 243586), (889, 236188), (959, 218948), (1724, 121793), (1778, 118094), (1918, 109474), (3017, 69596), (3556, 59047), (3836, 54737), (6034, 34798), (12068, 17399)]