20954115

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1$

素因数の和:98

約数の個数: 144

約数和(自身を含む): 49297248

約数和(自身を除く): 28343133

約数列:

[1, 3, 5, 7, 9, 13, 15, 17, 21, 35, 39, 43, 45, 49, 51, 63, 65, 85, 91, 105, 117, 119, 129, 147, 153, 195, 215, 221, 245, 255, 273, 301, 315, 357, 387, 441, 455, 559, 585, 595, 637, 645, 663, 731, 735, 765, 819, 833, 903, 1071, 1105, 1365, 1505, 1547, 1677, 1785, 1911, 1935, 1989, 2107, 2193, 2205, 2499, 2709, 2795, 3185, 3315, 3655, 3913, 4095, 4165, 4515, 4641, 5031, 5117, 5355, 5733, 6321, 6579, 7497, 7735, 8385, 9503, 9555, 9945, 10535, 10829, 10965, 11739, 12495, 13545, 13923, 15351, 18963, 19565, 23205, 25155, 25585, 27391, 28509, 28665, 31605, 32487, 32895, 35217, 35819, 37485, 46053, 47515, 54145, 58695, 66521, 69615, 76755, 82173, 85527, 94815, 97461, 107457, 136955, 142545, 162435, 176085, 179095, 199563, 230265, 246519, 322371, 332605, 410865, 427635, 465647, 487305, 537285, 598689, 997815, 1232595, 1396941, 1611855, 2328235, 2993445, 4190823, 6984705, 20954115]

約数ペア:

[(1, 20954115), (3, 6984705), (5, 4190823), (7, 2993445), (9, 2328235), (13, 1611855), (15, 1396941), (17, 1232595), (21, 997815), (35, 598689), (39, 537285), (43, 487305), (45, 465647), (49, 427635), (51, 410865), (63, 332605), (65, 322371), (85, 246519), (91, 230265), (105, 199563), (117, 179095), (119, 176085), (129, 162435), (147, 142545), (153, 136955), (195, 107457), (215, 97461), (221, 94815), (245, 85527), (255, 82173), (273, 76755), (301, 69615), (315, 66521), (357, 58695), (387, 54145), (441, 47515), (455, 46053), (559, 37485), (585, 35819), (595, 35217), (637, 32895), (645, 32487), (663, 31605), (731, 28665), (735, 28509), (765, 27391), (819, 25585), (833, 25155), (903, 23205), (1071, 19565), (1105, 18963), (1365, 15351), (1505, 13923), (1547, 13545), (1677, 12495), (1785, 11739), (1911, 10965), (1935, 10829), (1989, 10535), (2107, 9945), (2193, 9555), (2205, 9503), (2499, 8385), (2709, 7735), (2795, 7497), (3185, 6579), (3315, 6321), (3655, 5733), (3913, 5355), (4095, 5117), (4165, 5031), (4515, 4641)]