21448880

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{11657}}^1$

素因数の和:11693

約数の個数: 40

約数和(自身を含む): 52041312

約数和(自身を除く): 30592432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 11657, 23314, 46628, 58285, 93256, 116570, 186512, 233140, 268111, 466280, 536222, 932560, 1072444, 1340555, 2144888, 2681110, 4289776, 5362220, 10724440, 21448880]

約数ペア:

[(1, 21448880), (2, 10724440), (4, 5362220), (5, 4289776), (8, 2681110), (10, 2144888), (16, 1340555), (20, 1072444), (23, 932560), (40, 536222), (46, 466280), (80, 268111), (92, 233140), (115, 186512), (184, 116570), (230, 93256), (368, 58285), (460, 46628), (920, 23314), (1840, 11657)]