12921156

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{491}}^1$

素因数の和:561

約数の個数: 72

約数和(自身を含む): 35459424

約数和(自身を除く): 22538268

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 43, 51, 68, 86, 102, 129, 153, 172, 204, 258, 306, 387, 491, 516, 612, 731, 774, 982, 1462, 1473, 1548, 1964, 2193, 2924, 2946, 4386, 4419, 5892, 6579, 8347, 8772, 8838, 13158, 16694, 17676, 21113, 25041, 26316, 33388, 42226, 50082, 63339, 75123, 84452, 100164, 126678, 150246, 190017, 253356, 300492, 358921, 380034, 717842, 760068, 1076763, 1435684, 2153526, 3230289, 4307052, 6460578, 12921156]

約数ペア:

[(1, 12921156), (2, 6460578), (3, 4307052), (4, 3230289), (6, 2153526), (9, 1435684), (12, 1076763), (17, 760068), (18, 717842), (34, 380034), (36, 358921), (43, 300492), (51, 253356), (68, 190017), (86, 150246), (102, 126678), (129, 100164), (153, 84452), (172, 75123), (204, 63339), (258, 50082), (306, 42226), (387, 33388), (491, 26316), (516, 25041), (612, 21113), (731, 17676), (774, 16694), (982, 13158), (1462, 8838), (1473, 8772), (1548, 8347), (1964, 6579), (2193, 5892), (2924, 4419), (2946, 4386)]