21868012

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:226

約数の個数: 48

約数和(自身を含む): 42184800

約数和(自身を除く): 20316788

約数列:

[1, 2, 4, 19, 38, 53, 61, 76, 89, 106, 122, 178, 212, 244, 356, 1007, 1159, 1691, 2014, 2318, 3233, 3382, 4028, 4636, 4717, 5429, 6466, 6764, 9434, 10858, 12932, 18868, 21716, 61427, 89623, 103151, 122854, 179246, 206302, 245708, 287737, 358492, 412604, 575474, 1150948, 5467003, 10934006, 21868012]

約数ペア:

[(1, 21868012), (2, 10934006), (4, 5467003), (19, 1150948), (38, 575474), (53, 412604), (61, 358492), (76, 287737), (89, 245708), (106, 206302), (122, 179246), (178, 122854), (212, 103151), (244, 89623), (356, 61427), (1007, 21716), (1159, 18868), (1691, 12932), (2014, 10858), (2318, 9434), (3233, 6764), (3382, 6466), (4028, 5429), (4636, 4717)]