21871616

素因数分解:

$2^{10}\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:117

約数の個数: 88

約数和(自身を含む): 49521024

約数和(自身を除く): 27649408

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 53, 62, 64, 104, 106, 124, 128, 208, 212, 248, 256, 403, 416, 424, 496, 512, 689, 806, 832, 848, 992, 1024, 1378, 1612, 1643, 1664, 1696, 1984, 2756, 3224, 3286, 3328, 3392, 3968, 5512, 6448, 6572, 6656, 6784, 7936, 11024, 12896, 13144, 13312, 13568, 15872, 21359, 22048, 25792, 26288, 27136, 31744, 42718, 44096, 51584, 52576, 54272, 85436, 88192, 103168, 105152, 170872, 176384, 206336, 210304, 341744, 352768, 412672, 420608, 683488, 705536, 841216, 1366976, 1682432, 2733952, 5467904, 10935808, 21871616]

約数ペア:

[(1, 21871616), (2, 10935808), (4, 5467904), (8, 2733952), (13, 1682432), (16, 1366976), (26, 841216), (31, 705536), (32, 683488), (52, 420608), (53, 412672), (62, 352768), (64, 341744), (104, 210304), (106, 206336), (124, 176384), (128, 170872), (208, 105152), (212, 103168), (248, 88192), (256, 85436), (403, 54272), (416, 52576), (424, 51584), (496, 44096), (512, 42718), (689, 31744), (806, 27136), (832, 26288), (848, 25792), (992, 22048), (1024, 21359), (1378, 15872), (1612, 13568), (1643, 13312), (1664, 13144), (1696, 12896), (1984, 11024), (2756, 7936), (3224, 6784), (3286, 6656), (3328, 6572), (3392, 6448), (3968, 5512)]