21987936

素因数分解:

$2^5\times 3^4\times {\mathrm{17}}^1\times {\mathrm{499}}^1$

素因数の和:538

約数の個数: 120

約数和(自身を含む): 68607000

約数和(自身を除く): 46619064

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 27, 32, 34, 36, 48, 51, 54, 68, 72, 81, 96, 102, 108, 136, 144, 153, 162, 204, 216, 272, 288, 306, 324, 408, 432, 459, 499, 544, 612, 648, 816, 864, 918, 998, 1224, 1296, 1377, 1497, 1632, 1836, 1996, 2448, 2592, 2754, 2994, 3672, 3992, 4491, 4896, 5508, 5988, 7344, 7984, 8483, 8982, 11016, 11976, 13473, 14688, 15968, 16966, 17964, 22032, 23952, 25449, 26946, 33932, 35928, 40419, 44064, 47904, 50898, 53892, 67864, 71856, 76347, 80838, 101796, 107784, 135728, 143712, 152694, 161676, 203592, 215568, 229041, 271456, 305388, 323352, 407184, 431136, 458082, 610776, 646704, 687123, 814368, 916164, 1221552, 1293408, 1374246, 1832328, 2443104, 2748492, 3664656, 5496984, 7329312, 10993968, 21987936]

約数ペア:

[(1, 21987936), (2, 10993968), (3, 7329312), (4, 5496984), (6, 3664656), (8, 2748492), (9, 2443104), (12, 1832328), (16, 1374246), (17, 1293408), (18, 1221552), (24, 916164), (27, 814368), (32, 687123), (34, 646704), (36, 610776), (48, 458082), (51, 431136), (54, 407184), (68, 323352), (72, 305388), (81, 271456), (96, 229041), (102, 215568), (108, 203592), (136, 161676), (144, 152694), (153, 143712), (162, 135728), (204, 107784), (216, 101796), (272, 80838), (288, 76347), (306, 71856), (324, 67864), (408, 53892), (432, 50898), (459, 47904), (499, 44064), (544, 40419), (612, 35928), (648, 33932), (816, 26946), (864, 25449), (918, 23952), (998, 22032), (1224, 17964), (1296, 16966), (1377, 15968), (1497, 14688), (1632, 13473), (1836, 11976), (1996, 11016), (2448, 8982), (2592, 8483), (2754, 7984), (2994, 7344), (3672, 5988), (3992, 5508), (4491, 4896)]