21087616

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{881}}^1$

素因数の和:923

約数の個数: 64

約数和(自身を含む): 48580560

約数和(自身を除く): 27492944

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 32, 34, 44, 64, 68, 88, 128, 136, 176, 187, 272, 352, 374, 544, 704, 748, 881, 1088, 1408, 1496, 1762, 2176, 2992, 3524, 5984, 7048, 9691, 11968, 14096, 14977, 19382, 23936, 28192, 29954, 38764, 56384, 59908, 77528, 112768, 119816, 155056, 164747, 239632, 310112, 329494, 479264, 620224, 658988, 958528, 1240448, 1317976, 1917056, 2635952, 5271904, 10543808, 21087616]

約数ペア:

[(1, 21087616), (2, 10543808), (4, 5271904), (8, 2635952), (11, 1917056), (16, 1317976), (17, 1240448), (22, 958528), (32, 658988), (34, 620224), (44, 479264), (64, 329494), (68, 310112), (88, 239632), (128, 164747), (136, 155056), (176, 119816), (187, 112768), (272, 77528), (352, 59908), (374, 56384), (544, 38764), (704, 29954), (748, 28192), (881, 23936), (1088, 19382), (1408, 14977), (1496, 14096), (1762, 11968), (2176, 9691), (2992, 7048), (3524, 5984)]