19682816

素因数分解:

$2^9\times {\mathrm{37}}^1\times {\mathrm{1039}}^1$

素因数の和:1094

約数の個数: 40

約数和(自身を含む): 40428960

約数和(自身を除く): 20746144

約数列:

[1, 2, 4, 8, 16, 32, 37, 64, 74, 128, 148, 256, 296, 512, 592, 1039, 1184, 2078, 2368, 4156, 4736, 8312, 9472, 16624, 18944, 33248, 38443, 66496, 76886, 132992, 153772, 265984, 307544, 531968, 615088, 1230176, 2460352, 4920704, 9841408, 19682816]

約数ペア:

[(1, 19682816), (2, 9841408), (4, 4920704), (8, 2460352), (16, 1230176), (32, 615088), (37, 531968), (64, 307544), (74, 265984), (128, 153772), (148, 132992), (256, 76886), (296, 66496), (512, 38443), (592, 33248), (1039, 18944), (1184, 16624), (2078, 9472), (2368, 8312), (4156, 4736)]