21162816

素因数分解:

$2^6\times 3^3\times {\mathrm{37}}^1\times {\mathrm{331}}^1$

素因数の和:389

約数の個数: 112

約数和(自身を含む): 64089280

約数和(自身を除く): 42926464

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 37, 48, 54, 64, 72, 74, 96, 108, 111, 144, 148, 192, 216, 222, 288, 296, 331, 333, 432, 444, 576, 592, 662, 666, 864, 888, 993, 999, 1184, 1324, 1332, 1728, 1776, 1986, 1998, 2368, 2648, 2664, 2979, 3552, 3972, 3996, 5296, 5328, 5958, 7104, 7944, 7992, 8937, 10592, 10656, 11916, 12247, 15888, 15984, 17874, 21184, 21312, 23832, 24494, 31776, 31968, 35748, 36741, 47664, 48988, 63552, 63936, 71496, 73482, 95328, 97976, 110223, 142992, 146964, 190656, 195952, 220446, 285984, 293928, 330669, 391904, 440892, 571968, 587856, 661338, 783808, 881784, 1175712, 1322676, 1763568, 2351424, 2645352, 3527136, 5290704, 7054272, 10581408, 21162816]

約数ペア:

[(1, 21162816), (2, 10581408), (3, 7054272), (4, 5290704), (6, 3527136), (8, 2645352), (9, 2351424), (12, 1763568), (16, 1322676), (18, 1175712), (24, 881784), (27, 783808), (32, 661338), (36, 587856), (37, 571968), (48, 440892), (54, 391904), (64, 330669), (72, 293928), (74, 285984), (96, 220446), (108, 195952), (111, 190656), (144, 146964), (148, 142992), (192, 110223), (216, 97976), (222, 95328), (288, 73482), (296, 71496), (331, 63936), (333, 63552), (432, 48988), (444, 47664), (576, 36741), (592, 35748), (662, 31968), (666, 31776), (864, 24494), (888, 23832), (993, 21312), (999, 21184), (1184, 17874), (1324, 15984), (1332, 15888), (1728, 12247), (1776, 11916), (1986, 10656), (1998, 10592), (2368, 8937), (2648, 7992), (2664, 7944), (2979, 7104), (3552, 5958), (3972, 5328), (3996, 5296)]