19901824

素因数分解:

$2^7\times {\mathrm{89}}^1\times {\mathrm{1747}}^1$

素因数の和:1850

約数の個数: 32

約数和(自身を含む): 40116600

約数和(自身を除く): 20214776

約数列:

[1, 2, 4, 8, 16, 32, 64, 89, 128, 178, 356, 712, 1424, 1747, 2848, 3494, 5696, 6988, 11392, 13976, 27952, 55904, 111808, 155483, 223616, 310966, 621932, 1243864, 2487728, 4975456, 9950912, 19901824]

約数ペア:

[(1, 19901824), (2, 9950912), (4, 4975456), (8, 2487728), (16, 1243864), (32, 621932), (64, 310966), (89, 223616), (128, 155483), (178, 111808), (356, 55904), (712, 27952), (1424, 13976), (1747, 11392), (2848, 6988), (3494, 5696)]