21314560

素因数分解:

$2^{10}\times 5^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1$

素因数の和:229

約数の個数: 88

約数和(自身を含む): 53647776

約数和(自身を除く): 32333216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 181, 184, 230, 256, 320, 362, 368, 460, 512, 640, 724, 736, 905, 920, 1024, 1280, 1448, 1472, 1810, 1840, 2560, 2896, 2944, 3620, 3680, 4163, 5120, 5792, 5888, 7240, 7360, 8326, 11584, 11776, 14480, 14720, 16652, 20815, 23168, 23552, 28960, 29440, 33304, 41630, 46336, 57920, 58880, 66608, 83260, 92672, 115840, 117760, 133216, 166520, 185344, 231680, 266432, 333040, 463360, 532864, 666080, 926720, 1065728, 1332160, 2131456, 2664320, 4262912, 5328640, 10657280, 21314560]

約数ペア:

[(1, 21314560), (2, 10657280), (4, 5328640), (5, 4262912), (8, 2664320), (10, 2131456), (16, 1332160), (20, 1065728), (23, 926720), (32, 666080), (40, 532864), (46, 463360), (64, 333040), (80, 266432), (92, 231680), (115, 185344), (128, 166520), (160, 133216), (181, 117760), (184, 115840), (230, 92672), (256, 83260), (320, 66608), (362, 58880), (368, 57920), (460, 46336), (512, 41630), (640, 33304), (724, 29440), (736, 28960), (905, 23552), (920, 23168), (1024, 20815), (1280, 16652), (1448, 14720), (1472, 14480), (1810, 11776), (1840, 11584), (2560, 8326), (2896, 7360), (2944, 7240), (3620, 5888), (3680, 5792), (4163, 5120)]