21290147264

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{160163}}^1$

素因数の和:160273

約数の個数: 56

約数和(自身を含む): 44261641728

約数和(自身を除く): 22971494464

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 67, 124, 134, 248, 268, 496, 536, 992, 1072, 1984, 2077, 2144, 4154, 4288, 8308, 16616, 33232, 66464, 132928, 160163, 320326, 640652, 1281304, 2562608, 4965053, 5125216, 9930106, 10250432, 10730921, 19860212, 21461842, 39720424, 42923684, 79440848, 85847368, 158881696, 171694736, 317763392, 332658551, 343389472, 665317102, 686778944, 1330634204, 2661268408, 5322536816, 10645073632, 21290147264]

約数ペア:

[(1, 21290147264), (2, 10645073632), (4, 5322536816), (8, 2661268408), (16, 1330634204), (31, 686778944), (32, 665317102), (62, 343389472), (64, 332658551), (67, 317763392), (124, 171694736), (134, 158881696), (248, 85847368), (268, 79440848), (496, 42923684), (536, 39720424), (992, 21461842), (1072, 19860212), (1984, 10730921), (2077, 10250432), (2144, 9930106), (4154, 5125216), (4288, 4965053), (8308, 2562608), (16616, 1281304), (33232, 640652), (66464, 320326), (132928, 160163)]