28956213

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 49795200

約数和(自身を除く): 20838987

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 143, 149, 151, 429, 447, 453, 1287, 1341, 1359, 1639, 1661, 1937, 1963, 4917, 4983, 5811, 5889, 14751, 14949, 17433, 17667, 21307, 21593, 22499, 63921, 64779, 67497, 191763, 194337, 202491, 247489, 292487, 742467, 877461, 2227401, 2632383, 3217357, 9652071, 28956213]

約数ペア:

[(1, 28956213), (3, 9652071), (9, 3217357), (11, 2632383), (13, 2227401), (33, 877461), (39, 742467), (99, 292487), (117, 247489), (143, 202491), (149, 194337), (151, 191763), (429, 67497), (447, 64779), (453, 63921), (1287, 22499), (1341, 21593), (1359, 21307), (1639, 17667), (1661, 17433), (1937, 14949), (1963, 14751), (4917, 5889), (4983, 5811)]