21474560

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{883}}^1$

素因数の和:923

約数の個数: 72

約数和(自身を含む): 54206880

約数和(自身を除く): 32732320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 608, 640, 760, 883, 1216, 1280, 1520, 1766, 2432, 3040, 3532, 4415, 4864, 6080, 7064, 8830, 12160, 14128, 16777, 17660, 24320, 28256, 33554, 35320, 56512, 67108, 70640, 83885, 113024, 134216, 141280, 167770, 226048, 268432, 282560, 335540, 536864, 565120, 671080, 1073728, 1130240, 1342160, 2147456, 2684320, 4294912, 5368640, 10737280, 21474560]

約数ペア:

[(1, 21474560), (2, 10737280), (4, 5368640), (5, 4294912), (8, 2684320), (10, 2147456), (16, 1342160), (19, 1130240), (20, 1073728), (32, 671080), (38, 565120), (40, 536864), (64, 335540), (76, 282560), (80, 268432), (95, 226048), (128, 167770), (152, 141280), (160, 134216), (190, 113024), (256, 83885), (304, 70640), (320, 67108), (380, 56512), (608, 35320), (640, 33554), (760, 28256), (883, 24320), (1216, 17660), (1280, 16777), (1520, 14128), (1766, 12160), (2432, 8830), (3040, 7064), (3532, 6080), (4415, 4864)]