21137536

素因数分解:

$2^7\times 7^1\times {\mathrm{31}}^1\times {\mathrm{761}}^1$

素因数の和:813

約数の個数: 64

約数和(自身を含む): 49743360

約数和(自身を除く): 28605824

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 217, 224, 248, 434, 448, 496, 761, 868, 896, 992, 1522, 1736, 1984, 3044, 3472, 3968, 5327, 6088, 6944, 10654, 12176, 13888, 21308, 23591, 24352, 27776, 42616, 47182, 48704, 85232, 94364, 97408, 165137, 170464, 188728, 330274, 340928, 377456, 660548, 681856, 754912, 1321096, 1509824, 2642192, 3019648, 5284384, 10568768, 21137536]

約数ペア:

[(1, 21137536), (2, 10568768), (4, 5284384), (7, 3019648), (8, 2642192), (14, 1509824), (16, 1321096), (28, 754912), (31, 681856), (32, 660548), (56, 377456), (62, 340928), (64, 330274), (112, 188728), (124, 170464), (128, 165137), (217, 97408), (224, 94364), (248, 85232), (434, 48704), (448, 47182), (496, 42616), (761, 27776), (868, 24352), (896, 23591), (992, 21308), (1522, 13888), (1736, 12176), (1984, 10654), (3044, 6944), (3472, 6088), (3968, 5327)]