21412664

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{439}}^1$

素因数の和:532

約数の個数: 64

約数和(自身を含む): 50265600

約数和(自身を除く): 28852936

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 67, 91, 104, 134, 182, 268, 364, 439, 469, 536, 728, 871, 878, 938, 1742, 1756, 1876, 3073, 3484, 3512, 3752, 5707, 6097, 6146, 6968, 11414, 12194, 12292, 22828, 24388, 24584, 29413, 39949, 45656, 48776, 58826, 79898, 117652, 159796, 205891, 235304, 319592, 382369, 411782, 764738, 823564, 1529476, 1647128, 2676583, 3058952, 5353166, 10706332, 21412664]

約数ペア:

[(1, 21412664), (2, 10706332), (4, 5353166), (7, 3058952), (8, 2676583), (13, 1647128), (14, 1529476), (26, 823564), (28, 764738), (52, 411782), (56, 382369), (67, 319592), (91, 235304), (104, 205891), (134, 159796), (182, 117652), (268, 79898), (364, 58826), (439, 48776), (469, 45656), (536, 39949), (728, 29413), (871, 24584), (878, 24388), (938, 22828), (1742, 12292), (1756, 12194), (1876, 11414), (3073, 6968), (3484, 6146), (3512, 6097), (3752, 5707)]