21311664

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{223}}^1$

素因数の和:426

約数の個数: 80

約数和(自身を含む): 60662784

約数和(自身を除く): 39351120

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 88, 132, 176, 181, 223, 264, 362, 446, 528, 543, 669, 724, 892, 1086, 1338, 1448, 1784, 1991, 2172, 2453, 2676, 2896, 3568, 3982, 4344, 4906, 5352, 5973, 7359, 7964, 8688, 9812, 10704, 11946, 14718, 15928, 19624, 23892, 29436, 31856, 39248, 40363, 47784, 58872, 80726, 95568, 117744, 121089, 161452, 242178, 322904, 443993, 484356, 645808, 887986, 968712, 1331979, 1775972, 1937424, 2663958, 3551944, 5327916, 7103888, 10655832, 21311664]

約数ペア:

[(1, 21311664), (2, 10655832), (3, 7103888), (4, 5327916), (6, 3551944), (8, 2663958), (11, 1937424), (12, 1775972), (16, 1331979), (22, 968712), (24, 887986), (33, 645808), (44, 484356), (48, 443993), (66, 322904), (88, 242178), (132, 161452), (176, 121089), (181, 117744), (223, 95568), (264, 80726), (362, 58872), (446, 47784), (528, 40363), (543, 39248), (669, 31856), (724, 29436), (892, 23892), (1086, 19624), (1338, 15928), (1448, 14718), (1784, 11946), (1991, 10704), (2172, 9812), (2453, 8688), (2676, 7964), (2896, 7359), (3568, 5973), (3982, 5352), (4344, 4906)]