21620352

素因数分解:

$2^7\times 3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:162

約数の個数: 128

約数和(自身を含む): 63745920

約数和(自身を除く): 42125568

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 61, 64, 71, 78, 96, 104, 122, 128, 142, 156, 183, 192, 208, 213, 244, 284, 312, 366, 384, 416, 426, 488, 568, 624, 732, 793, 832, 852, 923, 976, 1136, 1248, 1464, 1586, 1664, 1704, 1846, 1952, 2272, 2379, 2496, 2769, 2928, 3172, 3408, 3692, 3904, 4331, 4544, 4758, 4992, 5538, 5856, 6344, 6816, 7384, 7808, 8662, 9088, 9516, 11076, 11712, 12688, 12993, 13632, 14768, 17324, 19032, 22152, 23424, 25376, 25986, 27264, 29536, 34648, 38064, 44304, 50752, 51972, 56303, 59072, 69296, 76128, 88608, 101504, 103944, 112606, 118144, 138592, 152256, 168909, 177216, 207888, 225212, 277184, 304512, 337818, 354432, 415776, 450424, 554368, 675636, 831552, 900848, 1351272, 1663104, 1801696, 2702544, 3603392, 5405088, 7206784, 10810176, 21620352]

約数ペア:

[(1, 21620352), (2, 10810176), (3, 7206784), (4, 5405088), (6, 3603392), (8, 2702544), (12, 1801696), (13, 1663104), (16, 1351272), (24, 900848), (26, 831552), (32, 675636), (39, 554368), (48, 450424), (52, 415776), (61, 354432), (64, 337818), (71, 304512), (78, 277184), (96, 225212), (104, 207888), (122, 177216), (128, 168909), (142, 152256), (156, 138592), (183, 118144), (192, 112606), (208, 103944), (213, 101504), (244, 88608), (284, 76128), (312, 69296), (366, 59072), (384, 56303), (416, 51972), (426, 50752), (488, 44304), (568, 38064), (624, 34648), (732, 29536), (793, 27264), (832, 25986), (852, 25376), (923, 23424), (976, 22152), (1136, 19032), (1248, 17324), (1464, 14768), (1586, 13632), (1664, 12993), (1704, 12688), (1846, 11712), (1952, 11076), (2272, 9516), (2379, 9088), (2496, 8662), (2769, 7808), (2928, 7384), (3172, 6816), (3408, 6344), (3692, 5856), (3904, 5538), (4331, 4992), (4544, 4758)]