20956338

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^2\times {\mathrm{83}}^2$

素因数の和:200

約数の個数: 54

約数和(自身を含む): 49766301

約数和(自身を除く): 28809963

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 83, 117, 166, 169, 234, 249, 338, 498, 507, 747, 1014, 1079, 1494, 1521, 2158, 3042, 3237, 6474, 6889, 9711, 13778, 14027, 19422, 20667, 28054, 41334, 42081, 62001, 84162, 89557, 124002, 126243, 179114, 252486, 268671, 537342, 806013, 1164241, 1612026, 2328482, 3492723, 6985446, 10478169, 20956338]

約数ペア:

[(1, 20956338), (2, 10478169), (3, 6985446), (6, 3492723), (9, 2328482), (13, 1612026), (18, 1164241), (26, 806013), (39, 537342), (78, 268671), (83, 252486), (117, 179114), (166, 126243), (169, 124002), (234, 89557), (249, 84162), (338, 62001), (498, 42081), (507, 41334), (747, 28054), (1014, 20667), (1079, 19422), (1494, 14027), (1521, 13778), (2158, 9711), (3042, 6889), (3237, 6474)]