21853772

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:290

約数の個数: 48

約数和(自身を含む): 43001280

約数和(自身を除く): 21147508

約数列:

[1, 2, 4, 17, 23, 34, 46, 68, 89, 92, 157, 178, 314, 356, 391, 628, 782, 1513, 1564, 2047, 2669, 3026, 3611, 4094, 5338, 6052, 7222, 8188, 10676, 13973, 14444, 27946, 34799, 55892, 61387, 69598, 122774, 139196, 237541, 245548, 321379, 475082, 642758, 950164, 1285516, 5463443, 10926886, 21853772]

約数ペア:

[(1, 21853772), (2, 10926886), (4, 5463443), (17, 1285516), (23, 950164), (34, 642758), (46, 475082), (68, 321379), (89, 245548), (92, 237541), (157, 139196), (178, 122774), (314, 69598), (356, 61387), (391, 55892), (628, 34799), (782, 27946), (1513, 14444), (1564, 13973), (2047, 10676), (2669, 8188), (3026, 7222), (3611, 6052), (4094, 5338)]