21488768

素因数分解:

$2^7\times 7^1\times {\mathrm{29}}^1\times {\mathrm{827}}^1$

素因数の和:877

約数の個数: 64

約数和(自身を含む): 50673600

約数和(自身を除く): 29184832

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 32, 56, 58, 64, 112, 116, 128, 203, 224, 232, 406, 448, 464, 812, 827, 896, 928, 1624, 1654, 1856, 3248, 3308, 3712, 5789, 6496, 6616, 11578, 12992, 13232, 23156, 23983, 25984, 26464, 46312, 47966, 52928, 92624, 95932, 105856, 167881, 185248, 191864, 335762, 370496, 383728, 671524, 740992, 767456, 1343048, 1534912, 2686096, 3069824, 5372192, 10744384, 21488768]

約数ペア:

[(1, 21488768), (2, 10744384), (4, 5372192), (7, 3069824), (8, 2686096), (14, 1534912), (16, 1343048), (28, 767456), (29, 740992), (32, 671524), (56, 383728), (58, 370496), (64, 335762), (112, 191864), (116, 185248), (128, 167881), (203, 105856), (224, 95932), (232, 92624), (406, 52928), (448, 47966), (464, 46312), (812, 26464), (827, 25984), (896, 23983), (928, 23156), (1624, 13232), (1654, 12992), (1856, 11578), (3248, 6616), (3308, 6496), (3712, 5789)]