20213408

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{509}}^1$

素因数の和:609

約数の個数: 48

約数和(自身を含む): 42797160

約数和(自身を除く): 22583752

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 73, 136, 146, 272, 292, 509, 544, 584, 1018, 1168, 1241, 2036, 2336, 2482, 4072, 4964, 8144, 8653, 9928, 16288, 17306, 19856, 34612, 37157, 39712, 69224, 74314, 138448, 148628, 276896, 297256, 594512, 631669, 1189024, 1263338, 2526676, 5053352, 10106704, 20213408]

約数ペア:

[(1, 20213408), (2, 10106704), (4, 5053352), (8, 2526676), (16, 1263338), (17, 1189024), (32, 631669), (34, 594512), (68, 297256), (73, 276896), (136, 148628), (146, 138448), (272, 74314), (292, 69224), (509, 39712), (544, 37157), (584, 34612), (1018, 19856), (1168, 17306), (1241, 16288), (2036, 9928), (2336, 8653), (2482, 8144), (4072, 4964)]