21034880

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1429}}^1$

素因数の和:1471

約数の個数: 64

約数和(自身を含む): 52509600

約数和(自身を除く): 31474720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 320, 368, 460, 640, 736, 920, 1429, 1472, 1840, 2858, 2944, 3680, 5716, 7145, 7360, 11432, 14290, 14720, 22864, 28580, 32867, 45728, 57160, 65734, 91456, 114320, 131468, 164335, 182912, 228640, 262936, 328670, 457280, 525872, 657340, 914560, 1051744, 1314680, 2103488, 2629360, 4206976, 5258720, 10517440, 21034880]

約数ペア:

[(1, 21034880), (2, 10517440), (4, 5258720), (5, 4206976), (8, 2629360), (10, 2103488), (16, 1314680), (20, 1051744), (23, 914560), (32, 657340), (40, 525872), (46, 457280), (64, 328670), (80, 262936), (92, 228640), (115, 182912), (128, 164335), (160, 131468), (184, 114320), (230, 91456), (320, 65734), (368, 57160), (460, 45728), (640, 32867), (736, 28580), (920, 22864), (1429, 14720), (1472, 14290), (1840, 11432), (2858, 7360), (2944, 7145), (3680, 5716)]