21682256

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{563}}^1$

素因数の和:683

約数の個数: 40

約数和(自身を含む): 44059680

約数和(自身を除く): 22377424

約数列:

[1, 2, 4, 8, 16, 29, 58, 83, 116, 166, 232, 332, 464, 563, 664, 1126, 1328, 2252, 2407, 4504, 4814, 9008, 9628, 16327, 19256, 32654, 38512, 46729, 65308, 93458, 130616, 186916, 261232, 373832, 747664, 1355141, 2710282, 5420564, 10841128, 21682256]

約数ペア:

[(1, 21682256), (2, 10841128), (4, 5420564), (8, 2710282), (16, 1355141), (29, 747664), (58, 373832), (83, 261232), (116, 186916), (166, 130616), (232, 93458), (332, 65308), (464, 46729), (563, 38512), (664, 32654), (1126, 19256), (1328, 16327), (2252, 9628), (2407, 9008), (4504, 4814)]