21247152

素因数分解:

$2^4\times 3^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:282

約数の個数: 80

約数和(自身を含む): 57615360

約数和(自身を除く): 36368208

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 48, 62, 93, 109, 124, 131, 186, 218, 248, 262, 327, 372, 393, 436, 496, 524, 654, 744, 786, 872, 1048, 1308, 1488, 1572, 1744, 2096, 2616, 3144, 3379, 4061, 5232, 6288, 6758, 8122, 10137, 12183, 13516, 14279, 16244, 20274, 24366, 27032, 28558, 32488, 40548, 42837, 48732, 54064, 57116, 64976, 81096, 85674, 97464, 114232, 162192, 171348, 194928, 228464, 342696, 442649, 685392, 885298, 1327947, 1770596, 2655894, 3541192, 5311788, 7082384, 10623576, 21247152]

約数ペア:

[(1, 21247152), (2, 10623576), (3, 7082384), (4, 5311788), (6, 3541192), (8, 2655894), (12, 1770596), (16, 1327947), (24, 885298), (31, 685392), (48, 442649), (62, 342696), (93, 228464), (109, 194928), (124, 171348), (131, 162192), (186, 114232), (218, 97464), (248, 85674), (262, 81096), (327, 64976), (372, 57116), (393, 54064), (436, 48732), (496, 42837), (524, 40548), (654, 32488), (744, 28558), (786, 27032), (872, 24366), (1048, 20274), (1308, 16244), (1488, 14279), (1572, 13516), (1744, 12183), (2096, 10137), (2616, 8122), (3144, 6758), (3379, 6288), (4061, 5232)]