21291264

素因数分解:

$2^8\times 3^2\times {\mathrm{9241}}^1$

素因数の和:9263

約数の個数: 54

約数和(自身を含む): 61394606

約数和(自身を除く): 40103342

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 72, 96, 128, 144, 192, 256, 288, 384, 576, 768, 1152, 2304, 9241, 18482, 27723, 36964, 55446, 73928, 83169, 110892, 147856, 166338, 221784, 295712, 332676, 443568, 591424, 665352, 887136, 1182848, 1330704, 1774272, 2365696, 2661408, 3548544, 5322816, 7097088, 10645632, 21291264]

約数ペア:

[(1, 21291264), (2, 10645632), (3, 7097088), (4, 5322816), (6, 3548544), (8, 2661408), (9, 2365696), (12, 1774272), (16, 1330704), (18, 1182848), (24, 887136), (32, 665352), (36, 591424), (48, 443568), (64, 332676), (72, 295712), (96, 221784), (128, 166338), (144, 147856), (192, 110892), (256, 83169), (288, 73928), (384, 55446), (576, 36964), (768, 27723), (1152, 18482), (2304, 9241)]